R0557100 Pressure Gauge Adapter with O-Ring Seal. Great replacement metal part. Length of 1.72inch. 5/8-11G Male.Fits for CS series cartridge filter models CS100, CS150, CS200, CS250, CJ200, CJ250 Filters.Made of high quality brass, more durable than plastic, longer service time and wear-resistant. The rubber o-ring ensurres great elasticity and sealing.Work on filter housing, replace the broken one and avoids leaking. Easy installation and handling.Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!Colour:Photo ColorMaterial:brassPackage Contents:1 x R0557100 Pressure Gauge Adapter with O-Ring SealOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.