Has the durability and abrasion resistance of rubber and the high-pressure strength and lighter weight of vinyl. Formulated to stay flexible in coldest temperatures. Thick cover double spiral knit reinforced for up to 400 lb. water pressure. Full flow heavy-duty octagon shaped solid brass couplings are crush-resistant. 1RV grade. Lifetime warranty. No. 23218: 5/8'' x 25' No. 23219: 5/8'' x 50' No. 23220: 5/8'' x 75' No. 23221: 5/8'' x 100' No. 23222: 3/4'' x 50' No. 23223: 3/4'' x 75'