{"product_id":"pentair-r172370-bottom-locking-flange-replacement-pool-and-spa-cartridge-filter","title":"Pentair Bottom Locking Flange for Dynamic Series Cartridge Filters, R172370","description":"\u003cp\u003eThe Pentair R172370 is the bottom locking flange for Dynamic Series cartridge filter housings, holding the filter body closed at the base while the unit is under pressure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe flange measures 7-1\/8 inch across the top outer diameter and 8-1\/8 inch across the bottom outer diameter, with a 6-3\/4 inch inner diameter, sized to clamp around the housing seam.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFit and compatibility\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eR172370 fits the Dynamic Series IV Filter, models DFML25C, DFML25, DFML35 and DFML50, as well as the Dynamic Series II and III Filter, model RTL\/RCF, so the same flange covers both filter families.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the model number on your filter housing before ordering, since this flange size is shared across several Dynamic Series models rather than being unique to just one. R172370 is sold individually as a genuine Pentair replacement part, not as part of a repair kit.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48694576414932,"sku":"RAI-051-3489","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_5d66827b-c2d5-4738-9ba6-27471be3cba2.jpg?v=1789765828","url":"https:\/\/www.activepoolsupply.com\/products\/pentair-r172370-bottom-locking-flange-replacement-pool-and-spa-cartridge-filter","provider":"Active Pool Supply","version":"1.0","type":"link"}