The Delta R10000-UNBXHF is the high-flow version of the MultiChoice Universal rough-in valve, designed for shower systems that need increased water volume — such as multi-function shower systems with body sprays, rain heads, or multiple outlets. The larger internal ports support higher flow rates compared to the standard R10000-UNBX. Compatible with all Delta 13, 14, 17, and 17T series trim kits. No integral stops; uses IPS, PEX, or sweat connections. Operates from 30–100 PSI.
When do I need the high-flow valve instead of the standard R10000-UNBX?
You need the high-flow valve when your shower system demands more water volume — for example, if you are installing a large rain head (10 inch or larger), multiple body sprays, or a combination shower system with several outlets running simultaneously. For a standard single showerhead setup, the regular R10000-UNBX provides sufficient flow.
Is the R10000-UNBXHF compatible with the same trim kits as the standard valve?
Yes. The UNBXHF accepts all current Delta 13, 14, 17, and 17T series trim kits. The only practical difference is the larger internal flow path, which handles higher demand shower configurations without pressure drop.
# Delta MultiChoice Universal Tub and Shower Rough-In Valve — High Flow, No Stops **Model:** `R10000-UNBXHF` **Brand:** Delta **Category:** Shower Rough In Valve > The Delta R10000-UNBXHF is the high-flow version of the MultiChoice Universal rough-in valve, designed for shower systems that need increased water volume — such as multi-function shower systems with body sprays, rain heads, or multiple outlets. The larger internal ports support higher flow rates compared to the standard R10000-UNBX. Compatible with all Delta 13, 14, 17, and 17T series trim kits. No integral stops; uses IPS, PEX, or sweat connections. Operates from 30–100 PSI. ## Specifications | Attribute | Value | |---|---| | Product Type | Shower Rough-In Valve | | Valve Family | MultiChoice Universal | | Model Variant | UNBXHF | | Compatible Series | 13, 14, 17, 17T | | Connection Type | IPS, PEX, sweat/solder | | Psi Min | 30 | | Psi Max | 100 | | Has Stops | No | | High Flow | Yes | | Back To Back Capable | Yes | | Warranty | Lifetime limited | ## What's Included - high-flow valve body - mounting bracket - installation hardware Source: https://www.jaspecs.com/delta/shower-rough-in-valve/r10000-unbxhf-delta-multichoice-universal-rough-in-valve-high-flow/