{"product_id":"dometic-421-low-profile-toilet-bone-gravity-flush","title":"Dometic 421 Low Profile Gravity Toilet, Bone, Elongated","description":"\u003cp class=\"nvn-hero\"\u003eThe Dometic 421 is a permanent, low-profile gravity toilet built for boat heads and RV baths where you want a real household feel without the household height. You get a premium porcelain bowl, an elongated soft-close seat, and a dual-action foot pedal for hands-free flushing. This one's the bone finish, without a hand sprayer.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eDometic's 421 series is the low-profile end of their permanent gravity-flush line, and it's the toilet a lot of boaters and RV owners reach for when they want the sit of a home toilet in a compact head. This is the bone finish version, with a 13-3\/4 inch bowl height and a 13-1\/2 inch seat height, so it sits low. That low profile matters more than it sounds. In a tight boat head or a low RV bath, those couple of inches are the difference between comfortable and cramped. It's a permanent-mount toilet, not a portable, so it's a proper plumbed fixture once it's in.\u003c\/p\u003e\n\u003cp\u003eThe bowl is premium porcelain, the same glossy ceramic you'd expect in a house, and that's exactly why people upgrade to it. It wipes clean, resists staining, and doesn't hold odor the way a plastic bowl does. The seat is an elongated, residential-size soft-close design in polypropylene, so there's no slamming lid at 3 AM on a rolling anchorage. Elongated is the roomier shape. On this unit the bowl runs about 19 inches deep, so it can overhang a standard 19 inch cutout. Give yourself a couple of extra inches of clearance aft of the old footprint so the lid closes freely and you're not knuckle-tight against the bulkhead.\u003c\/p\u003e\n\u003cp\u003eFlushing is handled by a dual-action foot pedal. Step part way to add water to the bowl, step all the way to flush and empty it. It's a gravity system, so waste drops straight down to your holding tank below. That means the 421 wants to sit above the tank, not beside it or under it, so plan your install around that. There's no macerator and no electric pump to fail here, which is a big part of the appeal. Fewer moving parts, less to go wrong, and nothing drawing amps when you flush.\u003c\/p\u003e\n\u003cp\u003eOne thing to know up front: this model ships without a hand sprayer. If you're used to rinsing the bowl with a sprayer, you'll be relying on flush volume instead. Some folks plumb in a separate washdown line for that, but plenty of owners run these for years without one. The bowl still rinses well on a full flush cycle, so day to day you may not miss it as much as you'd think. Just go in knowing what you're getting.\u003c\/p\u003e\n\u003cp\u003eInstall is straightforward if you respect a few things we've learned the hard way. Bed the base on butyl tape instead of cranking the mounting bolts down onto bare porcelain. The bowl can crack at the bolt holes if you over-tighten on a hard surface. Run 1-1\/2 inch sanitation hose at minimum on the discharge, and keep the runs as short and smooth as you can for a clean flush. If you're pairing it with a Dometic vacuum or holding-tank setup, the 385-series pumps work nicely with this bowl. Take your time on the seal and the hose, and the rest of the job is genuinely simple.\u003c\/p\u003e\n\u003cp\u003eFor saltwater boats, give the pedal mechanism a shot of silicone lube every month or so. The valve and pedal linkage will seize up over a couple of seasons if you let salt dry in them, and that's the number one complaint we hear on these. Same goes for layup. Drain the pedal valve before winter storage so you're not fighting leaky O-rings come spring. A little attention here and this toilet will outlast most of the boat.\u003c\/p\u003e\n\u003cp\u003eSo who's this for? Anyone repowering a tired old head or RV bath who wants the comfortable, household feel of an elongated porcelain bowl in a low-profile package. The bone finish blends with most older interiors better than bright white does. Worth noting, bone porcelain can yellow a little faster than white in a head that gets heavy direct sun, so if your bathroom has a big hatch or window overhead, keep that in mind. For most installs, though, it's a clean, quiet, no-nonsense upgrade that just works.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003ePremium porcelain bowl resists stains and odor and wipes clean like a household toilet\u003c\/li\u003e\n  \u003cli\u003e13-1\/2 inch low-profile seat height fits tight boat heads and low RV baths\u003c\/li\u003e\n  \u003cli\u003eElongated, residential-size seat gives you the roomier household shape\u003c\/li\u003e\n  \u003cli\u003eSoft-close polypropylene seat and lid, no slamming on a rolling anchorage\u003c\/li\u003e\n  \u003cli\u003eDual-action foot pedal: press part way to add water, all the way to flush\u003c\/li\u003e\n  \u003cli\u003eGravity-flush design with no macerator or electric pump, nothing to draw amps or fail\u003c\/li\u003e\n  \u003cli\u003eBone finish blends with older head and RV interiors\u003c\/li\u003e\n  \u003cli\u003eCompact footprint at 13-3\/4 in H x 15 in W x 19 in D\u003c\/li\u003e\n  \u003cli\u003eShips without a hand sprayer, relies on flush volume to rinse the bowl\u003c\/li\u003e\n  \u003cli\u003ePermanent-mount design discharges straight down to a holding tank below\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Dometic reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the Dometic 421 come with a hand sprayer?\u003c\/summary\u003e\n    \u003cp\u003eNo. This model ships without a hand sprayer, so you'll rely on flush volume to rinse the bowl. If you want one, you can plumb in a separate washdown line, but many owners run these for years without a sprayer.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the seat height?\u003c\/summary\u003e\n    \u003cp\u003eThe seat sits at 13-1\/2 inches, which is the low-profile version. Overall bowl height is 13-3\/4 inches. That low sit is what makes it fit tight boat heads and low RV baths.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it a gravity flush or does it have a pump?\u003c\/summary\u003e\n    \u003cp\u003eGravity flush. Waste drops straight down to the holding tank below, so there's no macerator and no electric pump. That means fewer parts to fail and no amp draw when you flush, but the toilet needs to sit above the tank.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size discharge hose does it use?\u003c\/summary\u003e\n    \u003cp\u003eUse 1-1\/2 inch sanitation hose at minimum on the discharge, and keep the runs as short and smooth as you can for the best flush.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill the elongated bowl fit my existing cutout?\u003c\/summary\u003e\n    \u003cp\u003eMaybe, but measure first. The bowl runs about 19 inches deep and can overhang a standard 19 inch cutout, so give yourself a couple of extra inches of clearance aft before you commit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I keep the foot pedal from seizing?\u003c\/summary\u003e\n    \u003cp\u003eGive the pedal mechanism a shot of silicone lube every month or so, especially in saltwater. Salt drying in the linkage is the most common cause of a stiff or stuck pedal over a couple of seasons.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I winterize it?\u003c\/summary\u003e\n    \u003cp\u003eDrain the pedal valve before winter storage. Leaving water in it can lead to leaky O-rings when you recommission in spring.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the seat and bowl made of?\u003c\/summary\u003e\n    \u003cp\u003eThe bowl is premium porcelain and the seat is polypropylene. The porcelain gives you the glossy, easy-clean household feel, and the seat is a soft-close design.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it crack when I bolt it down?\u003c\/summary\u003e\n    \u003cp\u003eIt can if you over-tighten onto a bare hard surface. Bed the base on butyl tape and snug the bolts gently rather than cranking them, and the porcelain base will be fine.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the bone finish discolor over time?\u003c\/summary\u003e\n    \u003cp\u003eBone porcelain can yellow a little faster than white in a head that gets a lot of direct sunlight. If your bathroom has a hatch or window overhead, keep that in mind, otherwise it holds its color well.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eDometic 421 Low Profile Gravity Toilet, Bone, Elongated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eDometic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e9610008284\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e7315091577250\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eModel Series\u003c\/th\u003e\n\u003ctd\u003e421\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003ePermanent\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBowl Material\u003c\/th\u003e\n\u003ctd\u003ePremium Porcelain\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeat Material\u003c\/th\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeat Type\u003c\/th\u003e\n\u003ctd\u003eElongated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSeat Height\u003c\/th\u003e\n\u003ctd\u003e13-1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFlush Type\u003c\/th\u003e\n\u003ctd\u003eGravity\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFlush Control\u003c\/th\u003e\n\u003ctd\u003eDual-action foot pedal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHand Sprayer\u003c\/th\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Dimensions (H x W x D)\u003c\/th\u003e\n\u003ctd\u003e13-3\/4 in x 15 in x 19 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does the Dometic 421 come with a hand sprayer?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This model ships without a hand sprayer, so you'll rely on flush volume to rinse the bowl. If you want one, you can plumb in a separate washdown line, but many owners run these for years without a sprayer.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the seat height?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The seat sits at 13-1\/2 inches, which is the low-profile version. Overall bowl height is 13-3\/4 inches. That low sit is what makes it fit tight boat heads and low RV baths.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it a gravity flush or does it have a pump?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Gravity flush. Waste drops straight down to the holding tank below, so there's no macerator and no electric pump. That means fewer parts to fail and no amp draw when you flush, but the toilet needs to sit above the tank.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size discharge hose does it use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Use 1-1\/2 inch sanitation hose at minimum on the discharge, and keep the runs as short and smooth as you can for the best flush.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will the elongated bowl fit my existing cutout?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Maybe, but measure first. The bowl runs about 19 inches deep and can overhang a standard 19 inch cutout, so give yourself a couple of extra inches of clearance aft before you commit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I keep the foot pedal from seizing?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Give the pedal mechanism a shot of silicone lube every month or so, especially in saltwater. Salt drying in the linkage is the most common cause of a stiff or stuck pedal over a couple of seasons.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I winterize it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Drain the pedal valve before winter storage. Leaving water in it can lead to leaky O-rings when you recommission in spring.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the seat and bowl made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The bowl is premium porcelain and the seat is polypropylene. The porcelain gives you the glossy, easy-clean household feel, and the seat is a soft-close design.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it crack when I bolt it down?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It can if you over-tighten onto a bare hard surface. 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If your bathroom has a hatch or window overhead, keep that in mind, otherwise it holds its color well.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Dometic","offers":[{"title":"Default Title","offer_id":44996143153245,"sku":"2007565","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_b52c5683-4c4b-4e2e-a9a9-b0c766e7ddd8.jpg?v=1788620202","url":"https:\/\/nvnmarine.com\/products\/dometic-421-low-profile-toilet-bone-gravity-flush","provider":"NVN Marine","version":"1.0","type":"link"}