Sierra Marine 90 Degree Street Elbow 1-1/2 in
Sierra Marine 90 Degree Street Elbow 1-1/2 in — Product description
The Sierra Marine 90 degree street elbow is a white plastic fitting that turns your boat's sanitation plumbing around a tight corner. It's a single elbow with two custom hose adapters, sized for 1-1/2 in OdorSafe Plus sanitation hose. A clean way to route the run behind a marine head or around a holding tank without kinking the hose.
This is the Sierra Marine 90 degree street elbow, a white plastic fitting built to route your boat's sanitation plumbing around a tight corner. It's a single elbow, and it ships with two custom hose adapters so you can tie it into 1-1/2 in OdorSafe Plus sanitation hose. If you've ever tried to run stiff sanitation hose behind a marine head or around the top of a holding tank, you know the problem. The hose fights you, it kinks, and a hard bend puts strain on every clamp in the run. A proper elbow solves that.
A street elbow is a little different from a standard elbow, and the difference matters when you're planning a plumbing run. One end is a male spigot and the other is a female socket. That lets the fitting slip straight into another socket fitting on one side while still accepting a hose or adapter on the other, so you can chain fittings together without adding a separate coupler between them. On a boat where every inch behind the head counts, that saved coupler is real space back.
The 90 degree bend is the whole point. Marine heads, vented loops, Y-valves, and holding tanks rarely line up in a straight shot. You've got a bulkhead here, a stringer there, and a tank that sits where the builder had room for it, not where your hose wants to go. This elbow lets you turn the run a full quarter and keep going, instead of forcing a long sweeping curve that eats up locker space and stresses the hose.
The two custom hose adapters are what make this an easy retrofit. They match the elbow's ports to 1-1/2 in hose, which is the common size for sanitation and holding tank plumbing on most cruising boats. Slide the adapter into the hose, seat it on the elbow, and clamp both ends. Stiff hose fights you in the cold, so warming the end with hot water or a heat gun makes it slide onto the barb far easier. We'd run a good marine sanitation sealant on the barbs and use two stainless clamps per connection, offset so the worm screws sit on opposite sides. That's the setup that stays dry and odor free season after season.
Speaking of odor, that's why the hose compatibility matters. Cheap hose lets waste smell permeate right through the wall, and no fitting fixes a permeated hose. Pairing this elbow with proper sanitation hose keeps the whole run sealed, and the plastic body won't corrode the way a metal fitting can when it's sitting in a damp bilge or a sanitation locker.
Who's this for? Anyone rebuilding or rerouting a marine head system. If you're replacing tired hose, moving a holding tank, adding a vented loop, or just chasing down a smell, having the right elbow on hand keeps the job moving. It's also a smart spare to keep in the parts box on a cruising boat, because a cracked fitting a hundred miles from a chandlery is a bad day. One tip while you're in there: keep the run draining downhill toward the tank or the discharge so nothing settles in a low spot and starts to smell.
A couple of honest notes. This is a drain-side sanitation fitting, not a pressure fitting, so don't press it into service on your freshwater system. And it's a single elbow, so if your run needs a gentler turn, the same family offers a 45 degree version. Match the fitting to the angle your space actually needs, dry fit the whole run before you commit, and re-check the clamps after the first few uses since new hose relaxes a little once it's been in service. Do that and you'll have a clean, sealed sanitation system you can forget about, which is exactly what you want from plumbing you'd rather not think about.
Key Features
- 90 degree bend: turns a sanitation run a full quarter to clear bulkheads, stringers, and tank corners without a long sweeping curve
- Street elbow design: one male spigot end and one female socket end, so it chains into another fitting without a separate coupler
- Two custom hose adapters included: sized to tie the elbow into 1-1/2 in sanitation hose out of the box
- White plastic body: won't corrode in a damp bilge or sanitation locker the way a metal fitting can
- Sized for 1-1/2 in OdorSafe Plus sanitation hose: keeps the whole run sealed against odor permeation
- Single elbow: drop-in replacement for a cracked or leaking fitting in an existing head system
- Barbed adapter connections: seat with sanitation sealant and stainless clamps for a dry, long-lasting joint
Why Buy from NVN Marine
- Authorized Sierra Marine reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | 90 Degree Street Elbow; Plastic; White; Single; For Use With OdorSafe Plus 1-1/2 in Diameter Hose; With 2 Custom Hose Adapters |
|---|---|
| Brand | Sierra Marine |
| Manufacturer Part Number | 307230311 |
| UPC | 087735100991 |
| Fitting Type | Street Elbow |
| Fitting Angle | 90 Degree |
| Material | Plastic |
| Color | White |
| Hose Diameter | 1-1/2 in |
| Compatible Hose | OdorSafe Plus 1-1/2 in Diameter Hose |
| Quantity | Single |
| Included | 2 Custom Hose Adapters |
Frequently asked questions
What is a street elbow?
It's an elbow with one male spigot end and one female socket end. The spigot slips straight into another socket fitting while the other end takes a hose or adapter, so you can chain fittings together without an extra coupler in between.
What hose does this fit?
It's sized for 1-1/2 in OdorSafe Plus sanitation hose. The two custom hose adapters that ship with it tie the elbow into that hose.
Are the hose adapters included?
Yes. Two custom hose adapters come with the elbow so you can connect it to 1-1/2 in sanitation hose right out of the box.
Is this for freshwater or sanitation plumbing?
It's a drain-side sanitation fitting for marine head and holding tank runs. Don't use it on a pressurized freshwater system.
What's the bend angle?
90 degrees, a full quarter turn. If you need a gentler turn, the same family also offers a 45 degree street elbow.
What color and material is it?
White plastic. The plastic body won't corrode in a damp bilge or sanitation locker the way a metal fitting can.
How do I install it?
Slide an adapter into the hose, seat it on the elbow, and clamp both ends. We'd run marine sanitation sealant on the barbs and use two stainless clamps per connection, with the worm screws offset on opposite sides.
Do I need a separate coupler to connect it?
No. Because it's a street elbow, the male spigot end slips directly into a socket fitting, saving you the coupler and the space it would take up.
Is it sold singly?
Yes, this is a single elbow. It's a smart spare to keep in the parts box on a cruising boat in case a fitting cracks far from a chandlery.
