The expandable torque arrestor protects submersible pumps from damage when the pump starts. It is made of heavy duty rubber. This torque arrestor can adjust to fit 4 in. to 8 in. well casings. Molded PVC rubber supplied with two stainless steel clamps. Fits 1 in. to 1-1/4 in. drop pipe Adjusts to fit 4 in. to 8 in. wel
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