Coupling
BK Products 511-202BG Galvanized Malleable Iron Coupling 3/8 FPT in. (Pack of 5)
A nice touch with the 88894000 is the included mounting hardware for easy setup.
BK Products 511-201BG Galvanized Malleable Iron Coupling 1/4 FIP in. (Pack of 5)
This unit from Blaster has a straightforward interface with big buttons.
KF vacuum socket joint 304 stainless steel quick release welded flange KF40
What stands out about this unbranded product is the honest build quality.
Rubber Insert Coupling HRC150
What stands out about this unbranded item is the straightforward construction.
CANPLAS 414217BC 4" x 3" PVC Sewer Increaser Coupling w/ Pipe Stop (Box of 24)
What stands out about Texonic is the stable performance even in dusty or wet environments.
HRC13E HRC130 HRC RUBBER ELEMENT BLACK COUPLING INSERT
I bought this unbranded version because I needed a basic workable part.
HRC15E HRC150 HRC Rubber Element Black Coupling Insert set of 2
Choosing this unbranded product saves you money without sacrificing quality.
Danfoss 11189848 COUPLING, D1P193-260 1 3/4IN 13T 8/16DP
A nice touch is the integrated mirror pockets that line up perfectly.