30425-BK Balboa Water Group/GG Wall Fitting Assy 2 1/2"spg, Black (VGB)   3-5/8" hole size with L-gasket 3-1/2" hole size with flat-gasket 211 GPM flow rate

54-410-1764 VGB Suction Fitting Assy,2-1/2"Spg,Gray   Virgina Graeme Baker Compliant 3-5/8" hole size with L-gasket 3-1/2" hole size with flat-gasket 211 GPM flow rate

54-410-1758 VGB Suction Fitting Assy,2"Spg,Gray   Virgina Graeme Baker Compliant 3-5/8" hole size with L-gasket 3-1/2" hole size with flat-gasket 211 GPM flow rate

640-3591V Waterway Plastics Super Hi-Flo Suction Assy,90 Ell,2 1/2",251GPM,Black(VGB)    High Flow SuctionVirgina Graeme Baker Compliant Rated at 251 gpm (portable spas only) Face size 5-1/4" Hole size 3-3/8"

806105369369 Waterway Plastics Super Hi-Flo Suction Assy,90 Ell,2 1/2",251GPM,White(VGB) 640-3590V   High Flow SuctionVirgina Graeme Baker Compliant Rated at 251 gpm (portable spas only) Face size 5-1/4" Hole size 3-3/8"