Pentair 350013 Lid O-Ring, Challenger (All), WFE (After 11/98)

Why did you pick this product vs others?: Seemed to match OEM number and right size.

I've seen a couple of writeups attesting that this was "too thick", did not come in genuine Pentair packaging and therefore was not OEM, etc. However, I ordered this for my Pentair variable speed pump based on the part number and it arrived in vacuum sealed Pentair OEM packaging. When I opened the package I simply cleaned the ring with a paper towel since it had some packaging/manufacturing "residue", then I applied a liberal amount of Hayward's Jack's Multilube (good stuff, although a bit expensive), and I got a nice seal on my pump. A couple of tips: - Make sure you thoroughly clean the pump housing and the area of the pump itself where the O-ring is going to make contact. I just use a toothbrush, water, and paper towels for this task. - Use a disposable glove to hold the ring and put the lube on it. You don't want any of the lube on your skin or clothing because it's hard to take off. - VERY STRONGLY suggest you buy and install a Hayward W530 Large Capacity Leaf Canister in your system: (https://smile.amazon.com/gp/product/B001E2D62W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) -- This will make cleaning out the leaf canister on your pump a thing of the past, and will be easier to clean out than having to struggle with opening the leaf canister built into your pump -- Will do a better job filtering out leaves, trash, and other things out of your pump which will prolong the life of your pool pump since it has a finer filter mesh than the one built into the pump -- Will save you time and money (at least in my case, it keeps the occasional mouse that falls into the pool out of the pool lines preventing clogs that require a professional to blow out of the line)

Works and fits great

I have a pool and hot tub that sit 4-10 feet below my pumps and filters. Suction is a big deal. I had old tops and old rings, I did not realize how bad they were impacting the suction getting water from the pool up to the pumps...ugh. I waited too long, but now it is amazing....

Product work as describe. Price was reasonable. Item look used, package was open and already had grease on it. I inspected the o ring and it looked good. Replaced my old one and work just fine. That why I gave it 4 stars out of 5. Wouldn't have mind buying use but item was stated as "new".

replaced o-ring old one had cracks in it. Also, replaced lid had developed stress cracks over the years. O-ring stopped air bubbles forming in the pump filter. Fit perfectly.

Genuine Pentair part.

Works well and seals well in the pump

Better pump seal !