{"product_id":"pentair-152000-pipe-assembly-for-cristal-flo-ii-high-rate-sand-filter-24-inch-tank","title":"Pentair Cristal-Flo SD70 Standpipe Assembly, 152000","description":"\u003cp\u003eThe Pentair 152000 is the pipe assembly for the Cristal-Flo II high rate sand filter with a 24 inch tank, listed as the SD70 standpipe and also carried for the Sand Dollar top mount filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the standpipe does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIt is the vertical pipe that runs up the center of the tank. Water passes down through the sand bed, in through the laterals at the bottom, and back up the standpipe to the valve. Everything filtered by the tank goes through it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy it fails\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA cracked standpipe or a broken joint at the top lets water skip the sand bed entirely, and the first sign is usually sand blowing back into the pool. Because standpipes are sized to the tank, confirm you have the 24 inch Cristal-Flo II before ordering.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48625810931924,"sku":"PAC-051-1279","price":126.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ecfa5810-0336-4a8f-b4bd-68964243eae9.jpg?v=1788700401","url":"https:\/\/www.activepoolsupply.com\/products\/pentair-152000-pipe-assembly-for-cristal-flo-ii-high-rate-sand-filter-24-inch-tank","provider":"Active Pool Supply","version":"1.0","type":"link"}