Hayward AquaNaut 400 & 450 Lower Body 4-Wheel Black Met | PVXS0009-236 Bio-Dex Phosphate Removers The front roller kit is

The front roller kit is a replacement part that is made by Pentair

This tensioner is black and has a spring attached to it that helps apply the tension needed to keep the chain in place

Retrofits existing Gamma 3 & Gamma 4 collars—no major plumbing changes needed

The most important of these parts to keep secure is the middle engine housing

Restore suction performance with the Zodiac Dura Life Diaphragm X73010 for T5 Duo

Hayward AquaNaut 400 & 450 Lower Body 4-Wheel Black Met | PVXS0009-236 Bio-Dex Phosphate Removers The front roller kit isHayward AquaNaut 400 & 450 Lower Body 4 Wheel Black Met The lower body 4 wheel (black met) is a replacement part that was made by Hayward. The same high quality materials were used to manufacture the original factory part. Making this a genuine OEM product. The lower body was built to be the main housing unit for all the cleaners parts just like a chassis is designed for a car. This unit also acts as a protective cover for internal parts like the