170020 Top Tank Lid Dome For Pentair FNS Plus FNSP36 DE Filter 36 Sq Replacement


















Filter Tank Lid Assembly 36 Sq. Pentair FNS Plus FNSP36 & EC-180007 (Almond). Is the top lid of your Pentair D. Filter cracked, fading, or leaking water under pressure? Extreme UV sun exposure and heavy internal pressure can eventually fatigue the factory dome, leading to hairline cracks and dangerous blowouts. Keep your swimming pool water crystal clear and secure your filtration system with this 170020 Tank Lid Assembly. This premium replacement dome is engineered specifically for Pentair FNS Plus 36 sq. Constructed from heavy-duty, corrosion-resistant polymer materials, it perfectly matches the factory almond color while providing superior structural integrity against high-pressure water flow. It precisely replaces OEM part number 170020, ensuring a flush, watertight seal with your existing lower tank half and metal locking ring clamp. Includes: (1) Almond Tank Lid Dome Assembly with factory warning labels applied. Fitment Note: Fits Pentair FNS Plus EC-180007 and FNSP36 Pool and Spa D. Filters (36 Square Feet Capacity). Note: O-ring, tension clamp, and top air relief valve are not included. ? PRO INSTALLATION TIP: Before securing this new top dome with your metal tension clamp, always remove your large center tank O-ring, clean the rim thoroughly, and apply a fresh, generous coat of silicone-based pool lubricant! A dry or dirty O-ring is the #1 cause of leaks between the top and bottom tank halves. Never use petroleum jelly (like Vaseline), as it will rapidly degrade the rubber seal. Direct OE Match: Exactly replaces Pentair OEM part number 170020 for a seamless, hassle-free installation. Heavy-Duty Construction: Built from premium, corrosion-resistant materials to withstand extreme tank pressure and harsh weather. Perfect Alignment: Measures 21.06″ in diameter and 13.38″ tall to perfectly seat against your factory bottom tank and locking clamp. Factory Almond Finish: Blends in perfectly with your existing equipment pad and resists fading from intense UV sun exposure. Fits the following vehicles. Model Family / Type. Nationwide (OE Grade Direct Replacement) / Aftermarket. Dimensions (Width x Height). 21.06″ in x 13.38″ in. 36 Square Feet (Diatomaceous Earth). International Buyers Welcome! (Please see note below). Filter lids that exhibit wrench marks on the top thread, pressure stress fractures from improper clamp installation, or water scale from being run in a pool system cannot be accepted for a full return. Please verify your filter size (36 sq ft) and part number before purchasing. International Buyers – Please Note. Thank you for your understanding. Please feel free to send a message. 170020, pentair tank lid, pentair fns plus lid, fnsp36 tank assembly, pentair ec-180007 lid, pentair de filter top, 36 sq ft pentair lid, almond filter lid, pool filter tank dome, pentair replacement lid, diatomaceous earth filter parts, pentair fns plus 36 parts, fns plus filter housing, cracked pentair lid fix, pool filter tank cover, pentair top manifold lid, fns plus filter shell, heavy duty pool filter lid, pentair 170020 exact replacement, swimming pool filtration parts, in ground pool filter lid, pentair spa filter parts, nationwide oe grade replacement, aftermarket pentair parts, pool filter water leak fix, pentair pressure vessel top, pentair locking clamp lid, pentair filter tank cap, pentair upper tank half, fiberglass pool filter lid, pentair 36sqft tank lid, pentair pool equipment repair, pool filter dome cover, pentair housing replacement, filter tank shell replacement, pool maintenance equipment, swimming pool water filter top.
Tags: dome, filter, fnsp36, pentair, replacement, tank
This entry was posted on Sunday, April 26th, 2026 at 10:03 am and is filed under tank. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

