HepVO Waste Valve for RV's but also the home

Now this can also be installed in your house at the kitchen faucet or in the bathroom at either the sink or for your tub and shower.

Here is one place I found to buy it:
http://www.marinemegastore.com/product.asp?pf_id=CLE_BV1_WH&jump=0&cat_id=&changecurrency=USD
a 32mm
at $36.19

or
http://www.marinemegastore.com/product.asp?pf_id=CLE_CV1_WH&changecurrency=USD
a 40mm
at $36.19