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Great fit. The internal diverted for my rain/handheld shower broke. Paid like 10x more to have it fixed twice. Glad I found this external diverted which is a $ saver. Otherwise I will have to get a total new rainshower. Works perfectly now. Its been like 2 months. Fixed my Grohe mixer and the nickles brand rain shower. ( which by the way is crap. Diverter broke 3x in 4 year.)
I have tried several shower diverters. Most have small or bad designed water channel that affects the gpm flow. If you are using a very low flow shower head/device (1.5 to 1.8), you'd probably never notice. At 2, you might notice a slight reduction. At 2.5 gpm, you will notice a reduction.
I have a 5 gpm shower valve and used my water softener readout to obtain the gpm flow.
This diverter allows 4.1 gpm flow through the shower port. And, 3.6 gpm through the diverted port. (I had to have a shower hose attached for the test but no handheld at the end of the hose.)
That's AMAZING performance. It's the BEST diverter that I have found.
This is the BEST handshower diverter valve I have ever used! Smooth and super easy to switch, even if you place it on the left and you're not left-dominant. You can also set it halfway to send water to both fixtures at once. Love it! USE THE PROVIDED PLUMBING TAPE.
Way better 3 way diverter than what you would get at Lowes or The Home Despot. Robust alloy construction can handle a heavy shower head amalgamation. Came with extra gaskets and even thread tape. Worth the money.