Fortis VALVE136-BASE 3/4" Floor Mounted Tub Filler Rough-in Valve Base

Fortis VALVE136-BASE 3/4" Floor Mounted Tub Filler Rough-in Valve Base is the required in-floor rough component for all Fortis 136-series floor-mounted tub fillers. Engineered to deliver high flow and long-term reliability, this solid brass base provides a 3/4" NPT inlet connection and a stable mounting platform for freestanding tub filler columns like the Abruzzo 941360CMB. 

VALVE136-BASE is designed to be installed in the subfloor before the finished floor and tub are set. A fixing kit and step-by-step instructions are included, helping plumbers set the correct depth, alignment, and secure anchoring for the tub filler. With a flow rate of up to 9.0 GPM at 60 PSI and a limited lifetime warranty, this rough-in gives you the performance and confidence needed for deep soaking tubs. 

Key features

• Floor-mount tub filler base: dedicated 3/4" rough-in valve base for Fortis floor-mounted tub fillers in the 136 series. 
• Solid brass construction: brass body for strength, corrosion resistance, and durability beneath the finished floor. 
• 3/4" NPT connections: 3/4" NPT inlet (and outlet to tub filler) for high-flow tub-filling performance. 
• High flow rate: flows approximately 9.0 GPM at 60 PSI, suitable for filling large freestanding tubs. 
• Fixing kit included: mounting hardware included to secure the base to the structure and properly locate the riser.
• Step-by-step installation: clear instructions guide rough height, orientation, and secure anchoring for a trouble-free install. 
• Rough-in only: this product is the in-floor base; decorative tub filler column and trim are sold separately.

Specifications

• Model: VALVE136-BASE – 3/4" floor-mounted tub filler base. 
• Application: rough-in valve for floor-mounted tub fillers (136 series). 
• Material: brass. 
• Connections: 3/4" NPT. 
• Flow rate: 9.0 GPM @ 60 PSI. 
• End connections: NPT inlet and outlet.
• Valve size: 3/4".
• Use: residential; also suitable for commercial with warranty limitations. 
• Standards: designed as a rough-in valve for tub fillers, complying with ASME A112.18.1 / CSA B125.1 when used in a system. 

Certifications & compliance

• NSF lead-free certified: meets U.S. standards for lead-free plumbing products used with drinking water. 
• CEC compliant: meets California Energy Commission requirements (system-based). 
• CALGreen compliant: qualifies for CalGreen projects when used with appropriate trims. 
• CSA compliant: tested and certified by CSA International. 
• ADA compliant: as part of a complete system, supports ADA-compliant installations when controls are installed appropriately. 

Construction & benefits

• Stable mounting platform: provides a secure structural anchor for floor-mounted tub filler risers, reducing movement and stress on finished flooring. 
• High-flow supply: 3/4" inlet and 9.0 GPM capacity help ensure reasonable fill times for larger soaking tubs. 
• Simplified installation: included fixing kit and clear instructions help plumbers achieve correct height and centering, minimizing rework. 
• Lead-free & code-ready: certified to meet major North American plumbing codes and regulations when installed as directed. 

Downloads

• Specifications Data Sheet (PDF)
• Care Instructions (PDF)

Warranty

• Mechanical warranty: limited lifetime warranty on mechanical parts for the original residential purchaser. 
• Finish warranty: limited lifetime warranty on finishes for residential use (where finish is applicable). 
• Commercial warranty: 1-year mechanical and finish warranty when used in commercial applications. 
• See Fortis warranty documentation for full terms, exclusions, and details on how to request service. 

Frequently asked questions

What does VALVE136-BASE include?

VALVE136-BASE includes the 3/4" brass floor-mounted tub filler base and a fixing kit for mounting; the visible tub filler column and trim are sold separately. 

Which products require VALVE136-BASE?

This rough-in base is required to install all Fortis 136-series floor-mounted tub fillers, such as Abruzzo floor-mount fillers that specify VALVE136-BASE. Always confirm the tub filler’s spec sheet for compatibility. 

What plumbing connections are needed?

The base uses 3/4" NPT connections, typically supplied by 3/4" hot and cold lines that feed the floor-mounted tub filler for higher flow rates. 

Can VALVE136-BASE be used with non-Fortis tub fillers?

It is specifically designed for Fortis 136-series floor-mounted tub fillers. Using it with other brands is not recommended unless confirmed by a plumber and the manufacturer.