Waterway 1.5 in Heater O-Ring Gasket In stock$499
Quick overview
- Genuine Waterway part Factory heater gasket 711-4050.
- 1.5 in heater connection Sized for the 1.5 in heater fitting Waterway lists it against.
- Flat gasket with o-ring extension Combines a flat sealing face with a molded o-ring lip rather than being a plain flat washer.
- Measured dimensions given Outside diameter 2-5/16 in, inside diameter 1-7/16 in, flat section 3/32 in thick.
- Stops union weeping A drip at the heater union is nearly always the gasket rather than the nut.
- Fit it dry and seated Push the gasket fully into its seat before you run the union nut up, so it cannot pinch or roll.
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Product details
The Waterway 711-4050 is the 1.5 in heater o-ring gasket. It is the genuine Waterway replacement, a single piece that combines a flat sealing face with a molded o-ring extension.
The dimensions Waterway gives
The gasket measures 2-5/16 in across the outside and 1-7/16 in across the inside, with a flat section 3/32 in thick and a total thickness of 3/16 in once the o-ring extension is counted. The source lists the extension separately as about 3/32 in thick with a 2-5/8 in outside diameter and a 2-3/8 in inside diameter. Those extension figures are larger than the gasket figures quoted above them, so measure the old gasket before you order if the fit is critical.
Fitting
A weeping heater union is almost always the gasket, not the nut, and tightening harder on a hardened or split gasket only makes it worse. Seat the new gasket fully into its recess so it cannot roll or pinch, then run the union nut up hand tight and check for a drip under pressure.
| Brand | Waterway |
|---|---|
| Manufacturer part number | 711-4050 |
| UPC | 806105124616 |
| Type | Heater o-ring gasket |
| Size | 1.5 in |
| Outside diameter | 2-5/16 in |
| Inside diameter | 1-7/16 in |
| Thickness, flat section | 3/32 in |
| Total thickness including o-ring extension | 3/16 in |
| O-ring extension thickness | About 3/32 in |
| O-ring extension outside diameter | 2-5/8 in |
| O-ring extension inside diameter | 2-3/8 in |
| Shipping weight | 0.05 lb |
| Ships | Parcel |
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