
Product Information
Description
Anderson Manufacturing 1 1/2" Standard Open Plug for 1 1/2" FPT, Part ANDO50
Close the line and leave it closed.
Anderson Manufacturing 1 1/2" Standard Open Plug for 1 1/2" FPT, part ANDO50 is a winterizing plug for pool plumbing, stocked under SKU PST-ANDO50. It seals a return, skimmer, or suction line so water cannot work its way back into pipe you already blew out and freeze there. The size in the part name is the plumbing it fits, so measure the pipe or fitting before ordering and match it exactly. Anderson winterizing plugs are a service trade staple, so they hold up to being pulled, rinsed, and reset year after year.
| Manufacturer | Anderson Manufacturing |
|---|---|
| Part | 1 1/2" Standard Open Plug for 1 1/2" FPT |
| Model / MPN | ANDO50 |
| SKU | PST-ANDO50 |
| Type | Pool winterizing plug |
| Fits | Pipe or fitting size called out in the part name |
| Season | Pool closing and winterizing |
| Use | Returns, skimmer lines, and blown out plumbing |
| Reuse | Reusable season to season when rinsed and stored dry |
| Sold As | Each |
What is the difference between a closed plug and an open plug?
A closed plug seals the line completely once it is set. An open plug passes air, so you can blow the line out with the plug already in place and let the pressure escape instead of building behind a dead end. Closed plugs are the default for returns; open styles and the Duck Plug valve are for lines you want to clear or vent after plugging.
How do I size the plug to my plumbing?
Measure the opening before you order. The size in the part name is the plumbing the plug is built for, and the difference between a 1 1/2 inch and a 1 7/8 inch plug is the difference between a seal and a leak. Threaded sizes such as MPT screw into a matching female fitting rather than wedging inside a pipe.
Does plugging the lines protect the pool from freezing?
Plugging is the last step, not the whole job. Lower the water below the returns, blow the lines clear, then plug so nothing refills them. The skimmer still needs its own protection, whether that is a compensator, a skimmer plug, or a cover plate over the throat.
Additional Info
| Category | Seasonal Pool Winterizing Winter Plugs |
| SKU | PST-ANDO50 |
| MPN | ANDO50 |
| Manufacturer | Anderson Manufacturing |
| Weight | 0.3 lb |