Eklind Standard Ball-End Hex Key Set, 7-Piece LP Cylinder Adapter They permit the vent stack

They permit the vent stack to expand and contract freely without disrupting the seal between the pipe and flashing collar

Do not use a rag as repeated contact with skin may cause irritation or blistering

Ergonomic handle ideal for heavy torque and maximum comfort

this pump is ideal for wiring to 12 volt batteries and installing onto transfer tanks in truck beds

Eklind Standard Ball-End Hex Key Set, 7-Piece LP Cylinder Adapter They permit the vent stackUnique ball end design allows hex screws to be tightened or loosened at angles up to 25 deg (degree). Made of high quality tool steel. Packaged in reusable plastic holder. Sizes include: 5 64', 3 32', 1 8', 5 32', 3 16', 7 32', 1 4'.