Hammerhead Head Wheel Set [21"/30" Vacuum, Large, 2 Pack] (HH1157) jets The Hayward CAT 2000 rotary

The Hayward CAT 2000 rotary flow sensor is designed for compatible chemical-control applications where flow monitoring is needed

A jet internal is useful because it helps direct the water stream through the jet face

and voltage helps keep the repair more accurate

which helps keep the replacement closer to the original installation design

Single-tube format for smaller repairs and detail work

Hammerhead Head Wheel Set [21"/30" Vacuum, Large, 2 Pack] (HH1157) jets The Hayward CAT 2000 rotaryThe Hammerhead HH1157 head wheel set is designed for compatible 21 inch and 30 inch vacuum applications and includes two large wheels. A replacement set like this is useful because it helps restore key rolling components on the vacuum head when the larger wheels have worn or need to be replaced as a pair. Replacing matched wheels together can help maintain more even handling and reduce the inconsistency that can come from pairing one new wheel with