Product Information
Description
Horizon Size #7 Winterizing Plug, 1-1/4 in Pipe
Tapered expansion plug for off-season plumbing seal-up.
Genuine Horizon #7 tapered winterizing plug, sized for 1-1/4 in Pipe. Push-in expansion design seals open plumbing ends so freeze damage cannot crack a return line or fitting over winter. Reusable plastic plug with a captive wing nut, drives the rubber gasket against the inside diameter for a positive seal. Outer diameter is ~1.469 in, the standard Technical Products / Anderson plug-size #7 cross-reference.
| Plug Size | #7 |
|---|---|
| Fits | 1-1/4 in Pipe |
| Use Case | 1-1/4 in Sch 40 PVC pipe |
| Outer Diameter | ~1.469 in |
| Sizing Standard | Technical Products / Anderson plug-size system |
| Construction | Molded plastic top, rubber gasket, wing-nut compression |
| Sealing Method | Push-in, hand-tighten wing nut to expand gasket against pipe ID |
| Reusable | Yes, store dry between seasons |
| PST SKU | PST-99-555-1009 |
Does this go in a pipe or in a fitting socket?
This size (#7) is sized for 1-1/4 in Pipe. Pipe plugs go into the cut end of a Sch 40 PVC pipe (smaller ID). Fitting plugs go into the open socket end of a coupling, ell, or valve port (larger ID). If you are not sure which end you have, measure the inside diameter with a caliper and match to the OD column on the spec table.
How tight should I crank the wing nut?
Hand-tight plus a quarter turn. The rubber gasket needs to expand against the pipe ID, but over-cranking deforms the gasket and shortens its life. If the plug leaks under low blower pressure, add another quarter turn and retest. If you are pressurizing above 5-10 psi, switch to a threaded plug instead.
Need a different size?
The Horizon plug series covers every standard plug-size number. Common sister sizes: #00 for 1/2 in Pipe, #0 for 1/2 in Fitting, #2 for 3/4 in Pipe, #3 for 3/4 in Fitting, #5 for 1 in Pipe, #6 for 1 in Fitting. Match the plug-size number to your pipe or fitting ID and you will land on the right SKU.
Additional Info
| Category | Pool Products Pool Maintenance Tools |
| SKU | PST-99-555-1009 |
| MPN | 99-555-1009 |
| Replaces | 6688-0, TPC-56-3615, TPC-601-1510 |
| Manufacturer | Horizon Spa & Pool Parts |
| Weight | 0.12 lb |
Let customers speak for us
Very good customer service. The post office screwed up my order and they responded to my msg very quickly and reshipped another part free of charge. 👍👍
I was looking for a part for an old pool filter housing.
Fortunately, I found PST. They had the part and I ordered it on a Friday, and it arrived on Tuesday by FedEx.
The filter housing was updated and different, but once I installed it, it fit perfectly and worked just as it should. I am so pleased with not only the part that I received but also the expert service and at a fair and excellent price.
Thank you, PST Pool Supply, for coming to my rescue. I highly recommend you checking with PST for your pool needs!
Replacement part was correct and vacuum is back together and being used.
Easy fix for small leak around valve in concrete pool.
Definitely recommend this shop!
We are running big and deep pool and we get all what we need from here
I had trouble finding the right part that would fit. PST helped me figure out exactly the right part and fit.
Helped me get my light installed correctly after liner change
This machine cleans 10 times better than my previous one and is worth the cost. However, I’ve only had it for 2 weeks. The last one lasted about 6 months and never cleaned well even though it had 4 stars when I bought it. I hope this new one remains strong for a few years
The pump was a great value and it was described perfectly. The product was shipped fairly quickly and it was well-protected
After much research the value of the product is good. It was shipped fairly quick and it arrive in a well-protected package.
Very happy with this purchase fits and work as described fast shipping
Loved how fast it got here. It has small wiring and I was glad it was in a protective envelope and it arrived without breaking.
