The 1" x 1" Female Adapter FPT has one
end that is threaded to fit on a 1" filter piece. The opposite end of the
Adapter FPT is narrow and is meant to have a 1" tube slide over it and fit
tightly. If a tighter seal is wanted then the use of hose clamps or ratchet
clips would be advised.
2 5/8" L x 1 5/8" W (at the largets end) and 1" W (at the narrow end)