** Some OLD Belvedere Bowls with Butterfly Shape in bowl under Hose Receiver
Like the Very OLD Belvedere #3000 Bowl this will NOT fit without modification
No instructions on how to Modify.
Also the Very OLD Belvedere #3800 Bowl has the Very Same Problem
However we do have a Vacuum Breaker Kit with a Hose Receiver (click here to see!) that will fit without any modification.

 

Includes: All Brass Vacuum Breaker, Chrome Plastic Hose Receiver, Hose to connect Fixture to Vacuum Breaker and mounting hardware

* Dimension of Chrome Plastic Hose Receiver  3-1/4" x 2-3/4"
* 1/4" measurement between inlet & outlet tubes
* Fits ALL MARBLE PRODUCTS COMPANY (MPC) SHAMPOO BOWLS
* Also fits Belvedere, Collins, Jeffco, Kaemark, Pibbs, Belmont Shampoo Bowls
* Also Fits the Old Belvedere #3800 Shampoo Bowls with "Butterfly" shape under hose receiver
* Universal Plumbing Code (UPC)  ASSE 1001 Approved (Printed on top of cap)
* Canada Plumbing Code (CSA) B64.1.1 Approved (Printed on top of cap)
* Rated up to 125 PSI at 212 degree Fahrenheit water
* Inlet and Outlet tubes are 1/4" pipe thread nipples (standard for the industry)

** This is a one way valve that saves the integrity of the fresh water system by Not allowing contaminate water ( water contaminated with perm solution, neutralizer, hair color and etc.) from mixing with the fresh water system that we all drink.
Consult your local plumber and building codes for need of this product.