Symmons is an industry leader when it comes to functional design, and the Dia line is no exception. Inspired by modern European industry, the Dia line provides you with a fresh, clean, simple, geometric design that is sure to complement your home and complete your bathroom décor. Beautiful finishes, options, and accessories will make your dream bathroom come to life. PlumbingSupply.com® is proud to offer these gorgeous tub and shower products as well as thousands of other plumbing-related products.
Dia Complete Tub & Shower Systems
This Dia tub/shower/handshower system features:
- Modern style brings elegant simplicity to your bathroom - coordinates perfectly with Dia faucets and accessories
- The ultimate in versatility, this stylish system has a tub spout, standard shower head, and a hand held shower!
- Never suffer from "shower shock" again - the Symmons Temptrol pressure balancing mixing valve protects you from unexpected temperature fluctuations
- Triple outlet diverter switches water between the showerhead, handshower, and tub spout, giving you the option to pick your bathing preference
- All pieces coordinate for a clean and coordinated shower
- 3" shower head fits standard 1/2" shower arms
- Handshower features comfort grip and 2-3/4" diameter face - also with rain spray and 1.5gpm flow rate
- 30" slide bar for hand shower
- 6-1/2" non-diverter tub spout
- ADA compliant
- View Dia 3506 Complete Tub/Shower/Handshower specifications
Includes pressure balance valve, diverter valve, valve trim, stationary shower head, shower arm, tub spout, hand shower, 5 ft. flexible metal hand shower hose, in-line vacuum breaker, and slide bar for the handshower
Dia Complete Tub/Shower/Handshower System - 3506
Dia Tub & Shower System with Diverter
These Dia tub/shower systems feature:
- Modern style brings elegant simplicity to your bathroom - coordinates perfectly with Dia faucets and accessories
- The Symmons Temptrol pressure balancing mixing valve eliminates "shower shock" from flushing toilets
- Adjustable stop screw limits handle turn for even greater scald protection
- Optional diverter built right into the pressure balancing valve for more compact installation (S-3502 only)
- 1.5 gpm 3" shower head fits standard 1/2" shower arms
- 7" diverter tub spout (3502) or 6-1/2" non-diverter tub spout (S-3502) included
- ADA compliant
- View Dia Tub/Shower 3502 specifications
- View Dia S-3502 with integral diverter specifications
Includes pressure balance valve, valve trim, shower head, shower arm, and tub spout
Dia Tub/Shower System
w/ Diverter Spout - 3502
Dia Tub/Shower System
w/ Integral Diverter - S-3502
Dia Shower & Handshower System with Diverter
This Dia shower/handshower system features:
- Luxury two head shower system with superior protection from scalding
- Versatile system is ideal for curbless or open showers
- 3" shower head fits standard 1/2" shower arms
- Handheld shower with 30" slide bar and 5 ft metal hose lets you rinse with ease whether standing or sitting
- Scald protection provided by the Temptrol pressure balancing mixing valve
- Showerhead and handshower both have a water-efficient flow rate of 1.5 gpm
- ADA compliant
- View specifications
Includes pressure balance valve, dual outlet diverter valve, valve trim, stationary shower head, shower arm, hand shower, 5 ft. flexible metal hand shower hose, in-line vacuum breaker, and slide bar for the handshower
Dia Shower/Handshower System -
3505-H321-V-CYL-B
Dia Shower Systems
These Dia shower systems feature:
Includes pressure balance mixing valve, valve trim, shower head, and shower arm
Dia Shower System - 3501-CYL-B
Includes pressure balance mixing valve with built-in secondary volume control, valve trim, shower head, and shower arm
Dia Shower System w/ Volume Control -
S-3501-CYL-B
Dia Handshower System
This Dia handshower system features:
- The versatility of a handheld shower and the reliability of Symmons, all wrapped up in a stylish, elegant design
- Uses the Temptrol pressure balancing mixing valve for superior scald protection
- Set maximum handle turn for even greater temperature control
- The 90° wall fixed wall outlet and 5 ft. flexible metal hose resist kinking and twisting, while in-line vacuum breaker prevents backflow
- Handshower cradle securely holds the hand shower at your preferred height
- Handheld shower flow rate: 1.5 gpm
- ADA compliant
- View Dia 3503 Handshower System specifications
Includes pressure balance valve, valve trim, hand shower, 5 ft. flexible metal hand shower hose, in-line vacuum breaker, and slide bar for the handshower
Dia Handshower System -
3503-H321-V-CYL-B
Dia Tub & Handshower System with Diverter
This Dia tub/handshower system features:
- Update a standard tub installation with this stylish handheld shower system
- Great for children, the disabled, or anyone who enjoys the freedom of a moveable shower head
- Scald protection from Symmons Temptrol pressure balancing mixing valve
- Diverter integrated into pressure balance valve for cleaner installation
- Adjustable stop screw sets the maximum temperature by limiting handle turn
- 6-1/2" non-diverter tub spout
- Handshower flow rate: 1.5 gpm
- ADA compliant
- View Dia #S-3504 Tub & Handshower System specifications
Includes pressure balance valve with built-in diverter, valve trim, tub spout, hand shower, 5 ft. flexible metal hand shower hose, in-line vacuum breaker, 90° fixed wall connection, and wall cradle for the handshower
Dia Tub & Handshower System -
S-3504-H321-V-CYL-B
Dia Handshower Kit
This handshower features:
- Complete kit lets you add a handshower to your bathroom for comfort and convenience
- 30" slide bar and cradle allow you to position the handshower at the height you want
- Available in two designer finishes
- Includes handshower, 5' flexible metal hose, wall connection, 30" slide bar with hand shower bracket, and inline vacuum breaker
- View H321-V specifications
Dia Handshower Kit - H321-V
Dia Centerset Bathroom Faucet
This Dia bathroom faucet features:
- Coordinating centerset faucet brings the elegance out of the shower and into the rest of the bathroom
- Durable metal construction and 1/2" IPS connections will last for years
- Handles mounted at 4" centers
- Metal drain assembly
- CEC compliant and WaterSense certified water-saving 1.0 gpm flow rate
- View SLC-3512 specifications
Dia Centerset Bathroom Faucet - SLC-3512
Dia Widespread Bathroom Faucet
This Dia bathroom faucet features:
- Coordinating widespread faucet brings the elegance out of the shower and into the rest of the bathroom
- Durable metal construction and 1/2" IPS connections will last for years
- Handles can be mounted from 8-16" centers to fit nearly any bathroom sink installation
- Braided supply hoses included with faucet to help ease installation
- CEC compliant and WaterSense certified water-saving 1.0 gpm flow rate
- View SLW-3512 specifications here
Dia Widespread Bathroom Faucet -
SLW-3512
Dia Single Handle Bathroom Faucet
This Dia bathroom faucet features:
- Coordinating single-handle faucet brings the elegance out of the shower and into the rest of the bathroom
- Braided supply hoses included with faucet to help ease installation
- Ceramic cartridge
- Available with or without drain assembly
- Available in Polished Chrome and Satin Nickel finishes
- CEC compliant and WaterSense certified water-saving 1.0 gpm flow rate
- View SLS-3510 and SLS-3512 specifications
Dia Single Handle Bathroom Faucet
WITHOUT Drain - SLS-3510
Dia Single Handle Bathroom Faucet
WITH Drain Assembly - SLS-3512
Dia Series Components & Accessories
Dia shower valves feature:
- Smooth design and modern look make for a sophisticated style
- Add on to your existing Dia suite shower or upgrade an old valve and trim
- Shower valve and trim only allows you to mix and match with your favorite showerhead and/or tub spout
- Durable metal construction that is built to last
- Uses the Symmons Temptrol pressure balancing mixing valve with adjustable stop screw to limit handle turn
- Use with diverter tub spout or separate diverter for tub/shower combinations
- View Dia 3500 rough-in specifications
Dia Shower Valve WITH Trim 3500
Dia shower valves feature:
- Tub & Shower (or Shower Only) Valve with Built-In Diverter/Volume Control
- Smooth design and modern look make for a sophisticated style
- Add on to your existing Dia suite shower or upgrade an old valve and trim
- Shower valve and trim only allows you to mix and match with your favorite showerhead and/or tub spout
- Durable metal construction that is built to last
- Uses the Symmons Temptrol pressure balancing mixing valve with adjustable stop screw to limit handle turn
- Use with non-diverter tub spout for tub/shower combinations
- Non-diverter tub spout, shower arm, and head, sold separately
- View S-3500 shower valve rough-in specifications
Dia Shower Valve with Integral Diverter/Volume Control WITH Trim S-3500
Dia 4" Showerhead - 352SH
Single Spray 1.5 GPM
Dia 6" Shower Arm with Stamped Flange - 300S
Dia 7" Diverter Tub Spout - 057
Slip-on copper pipe - 3" min. 4-1/2" max. from finished wall
Dia 7" Non-Diverter Tub Spout - 067 - 1/2" IPS Inlet - 5-1/4" stub out from finished wall
Dia Double Robe Hook - 353DRH
Dia 18" Towel Bar - 353TB-18
Dia 24" Towel Bar - 353TB-24
Dia 18" Double Towel Bar - 353DTB-18
Dia 24" Double Towel Bar - 353DTB-24
Dia 22" Towel Shelf with Bar - 353TS-22
Dia Toilet Paper Holder - 353TP
Dia Toilet Paper Holder - 353TPC
Dia Toothbrush Holder - 353TH
Frequently Asked Questions
Q. "What is the quality of Symmons products?"
A. Since the 1930's Symmons has provided superior engineering, and solid workmanship in every product. Product manufacturing, assembly, and handling are subject to strict quality control and only the highest quality materials are selected to ensure durability for years to come.
Q. "How do pressure balance valves prevent scalding?"
A. Pressure balance valves help prevent scalding by compensating for changes in pressure on the hot or cold supply lines. When water use elsewhere in the system causes the pressure of either the hot line or the cold line to fluctuate, like when a toilet flushes, the internal piston in the Symmons Temptrol pressure balance shower valve adjusts automatically to instantly and continually equalize or "balance" the hot and cold water pressure. This keeps the water temperature consistent, so you don't have to worry about shocks of ice cold or burning hot water.
Q. "How does a pressure balance valve work without a volume control?"
A. Pressure balance valves, are basically on/off devices - the water is all on or all off; there is no in-between. To turn the valve on, you shift the lever. The farther you turn the lever, the warmer the water gets, but it's always at full flow.
Q. "Why would you want to limit the handle turn on a pressure balance valve?"
A. A pressure balancing valve will prevent you from being scalded if someone flushes a toilet since it keeps the ratio of hot to cold consistent. However, if someone shoves the handle all the way to the "all hot" position, there's virtually no cold water tempering the hot water. If your water heater is set very high, or if members of your household have sensitive skin, this can be an accident waiting to happen. For this reason, these pressure balance mixing valves have a stop screw that will allow you to set the maximum hot to cold ratio, effectively setting the maximum temperature. To take advantage of this feature, simply rotate the knob to set the water to the hottest that you'd ever want out of the shower, then turn the set screw until it bottoms out. This prevents the temperature knob from turning past the position you selected, effectively limiting the maximum temperature allowed from that valve.
