{"product_id":"pentair_84420505","title":"Pentair Admiral S20 Skimmer Circular Weir with Equalizer, 2\" Slip | Admiral S20 | 84420505","description":"\u003cp\u003eThe Pentair Admiral S20 Circular Weir with Equalizer (84420505) is the OEM replacement weir assembly for the Admiral S20 concrete pool skimmer, configured with a 2\" slip equalizer port. NSF certified.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\u003cstrong\u003eIMPORTANT: VERIFY YOUR SKIMMER MODEL AND EQUALIZER PORT TYPE BEFORE ORDERING\u003c\/strong\u003e\u003cbr\u003eThis weir assembly is specific to the Admiral S20 skimmer with a 2\" slip equalizer connection. Confirm your skimmer model number and that your equalizer port accepts a slip fitting — not a threaded connection — before ordering.\u003c\/p\u003e\n\n\u003cp\u003eThe circular weir floats at the water surface inside the skimmer throat, creating continuous skimming action that draws surface debris into the skimmer basket. The integrated equalizer fitting maintains water flow to the skimmer when pool water level drops, preventing the pump from drawing air. A deteriorated weir reduces surface skimming efficiency; a compromised equalizer fitting can introduce air entrainment at the pump. This replacement assembly restores both functions in a single part designed to the exact dimensions of the Admiral S20 housing. NSF certified for concrete pool construction.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e84420505\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eEquipment Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eAdmiral S20 Skimmer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e2\" Slip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eFor concrete pool construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eNSF Certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePoolaroo Pro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, locate the model number molded into the skimmer body — typically on the inside wall of the housing below the lid seat. Confirm it reads \"S20.\" Also verify your equalizer port accepts a slip fitting; slip and threaded connections are not interchangeable and the wrong configuration will not seal correctly. When replacing the weir, inspect the equalizer check valve and skimmer basket at the same time — addressing these together while the skimmer is already accessible avoids a return visit.\u003c\/p\u003e\n\u003c!-- wft:processed:manual:2026-05-01 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53912383717651,"sku":"84420505","price":217.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/PEN84420505_0.png?v=1772793802","url":"https:\/\/poolaroo.com\/products\/pentair_84420505","provider":"Poolaroo","version":"1.0","type":"link"}