R0552000 tank adapter with union and Oring 4piece compatible with for Zodiac DEV series D. models DEV48, DEV 60 and series filter models 100, 150, 200, 250. Also compatible with for Zodiac DEL, CV, , CJ and series filter.R0552000 tank adapter with union and Oring 4piece is made of highquality plastic, waterproof, , , good elasticity, good sealing, not easy to break.Easy installation: Easy installation could help you to save more time. , place smaller, thicker oring onto threads of tank adapter.Secondly, place larger, thinner oring onto gauge housing.Precautions: If it is first replacement, you need to pay attention,never start pump while standing within five feet of filter or operate filter system at more than 50 psi of pressure.Please note:the physical slightly color difference or difference, does not affect use, please do not mind, thank you!Colour:BlackMaterial:PlasticPackage Contents:1 * R0552000 Tank Adapter with ORing and Union Replacement kitOnly above package content, other products are not included.Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/ 13cm.