Polaris Zodiac 360 26' Black Feed Hose (9 100 3101) valterraproducts A piston cap is useful A piston cap is useful because it helps complete and retain a critical portion of the internal valve assembly while contributing to the durability of the operating mechanism A drain kit is useful because it helps support cleaner system operation and maintenance by managing water removal in a more controlled way this feed hose helps support dependable cleaner performance and stronger long term hose reliability Feed hoses are useful because dependable water delivery is one of the key requirements for proper cleaner movement and operation