FREE Shipping on orders over $25 shipped by Amazon. I would go with the 1.25 flexible hose.The garden hose reduction would cause back pressure and would blow the connection or the gasket seal on your sand filter. The Intex hose gives me the angle I needed for my water to run without kinking up my backwash hose. Accessory Hose for Intex and Soft Sided Pools - 1.5 x 59 Inch. I use an extra intex hose I have to the backwash port ,that is connected to the 1.25 flex hose with an intex to 1.25 " adapter.I'll see if I can find a pic. Amazon's Choice for intex backwash hose. If you switch to an Intex filter system this adapter … Shop here for the right hoses & accessories for you! I use an Intex hose that came with the 1500 gph pump and purchased a 2" backwash hose from Lowes. 99 $19.68 $19.68. Should have ordered it from Amazon to start with since I had switched to the Intex Sand filter system this past weekend. - - - Updated - - - Browse Walmart.ca for a wide variety of Pool Hoses. I made several trips to Lowes Hardware to find an adapter to fit my backwash hose and finally decided to order it from Amazon. $17.99 $ 17. Intex Replacement Hose Adapter A w/Collar for Threaded Connection Pumps (Pair) 4.7 out of 5 stars 740. The backwash hose slides over the Intex hose and actually creates a tight fit without a hose clamp. Get it as soon as Wed, Jul 1.