This part is a Filter, Cartridge, 40sqft, 1-3/4" Male Slip Barb, 6" Wide, 8-1/4" Tall..
Note: This filter does not have threads it is a push in style..
This is a back mount pressure gauge with a 1/4" MPT Threaded Mount used on Swimming Pool and Inground Style Hot Tub Sand and DE Style Filters. Hayward, Pentair, StaRite, Purex,Jacuzzi,Pacfab, Filter...