Check the listing for details. AppliaFit 6-Pack Water Filter Housing O Ring Compatible with Pentek 151120. Color: Blue, Condition: New. Listed at 11.85 USD. AppliaFit O-Rings Compatible with Pentek 151122 for Big Blue Water Filters and More (6-Pack) Product details: Brand: AppliaFit 6-Pack of Filter Housing O-Rings. Compatible with Pentek #10 and #20 Big Blue Water Filter Housings. Also compatible with water filter brands Ace Hardware, Ametek Kleen-Plus, American Plumber, AO Smith, Aqua-Flo and Mulligan. See description for model numbers Made from Heavy Duty Materials for Durability and Performance What you see in the picture is representative of what you will receive. Check out my listings and I will combine shipping, when it applies. Thank you for looking. There are no handling fees. I ship whichever is cheaper; US Post office, UPS or FedEx, if you have a preference there MAY be additional charges. All shipping is actual even overseas. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. If the item is shipped Fed Ex you MUST have a physical address, no PO Boxes. I will not lie on customs forms, it is what it is. THANK YOU TO ALL WHO HAVE SERVED THE RED,WHITE AND BLUE!!