Robelle Cover Blox are the best alternative to water tubes. Unlike water tubes, Cover Blox will never split or break because of water expanding into ice. This product is over 4-times thicker than water tubes and doesn’t have seams, so you will never have to replace a Cover Blox. They are easier to store than water tubes, because you can stack Cover Blox.
- Model 1106-12
- Replaces your standard vinyl water tubes
- 16 ft. x 32 ft. rectangular requires 32 cover blox
- 20 ft. x 40 ft. rectangular requires 40 cover blox
- Cover Blox Measure 3 ft. long, 8 in. wide and 4 in. tall











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