A non-thermostatic bath and shower faucet delivering 17.2 liters per minute (LPM) — equivalent to 4.5 gallons per minute (GPM) — is a robust, high-performance plumbing fixture designed for luxurious water flow and reliable functionality in residential bathrooms. Unlike thermostatic valves that automatically maintain set temperatures, this type uses a pressure-balancing mechanism to reduce sudden temperature swings caused by flushing toilets or running appliances, while still requiring manual adjustment of hot and cold water via handles.
This faucet system is perfect for larger households, low-pressure water systems, or anyone who values strong, invigorating showers and rapid bathtub filling. It typically includes:
– A wall-mounted mixing valve (exposed or concealed)
– A tub spout with 6–8″ reach
– A shower arm outlet
– A 3-way diverter (knob or lever) to switch between tub fill, shower only, or both
– Trim kit (handles, escutcheon plates) in polished chrome, brushed nickel, matte black, or oil-rubbed bronze
##### Core Features
| Feature | Details |
|——–|——–|
| Flow Rate | 17.2 LPM – powerful stream |
| Valve Type | Pressure-Balanced |
| Handles | Single-lever or dual-handle |
| Cartridge | Ceramic Disc – drip-free |
| Material | Solid Brass, lead-free |
| Installation | 1/2″ inlets, wall-mount |
| Finish | PVD chrome/nickel/black |
##### Top Models
1. Delta Monitor® 17 Series (T17459) – DIAMOND™ Seal, 17.2 LPM, stainless, ~$280
2. Kohler Purist® (K-T14422-4-CP) – Sleek lever, chrome, ~$350
3. Moen Weymouth® (TS32102) – Cross handles, bronze, ~$400
##### Pros & Cons
Pros: Powerful flow | Affordable | Easy install
Cons: Manual temp | Higher water use
##### Installation Tip
Use integral stops & Teflon tape. Rough-in depth: 2.5–3.5″.
Best for: High-demand, modern bathrooms.
Price Range: $180–$550
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