Gerber 58-420, Two-Handle Sliding Sleeve Escutcheon Tub and Shower Fitting, 8" Center, Chrome, 1.75 gpm, Hardwater Collection

Product Overview

The Gerber 58-420 Tub and Shower Fitting is part of the 58-400 Series, designed for professional-grade plumbing installations in residential and light commercial environments. This two-handle, 8-inch center unit incorporates ceramic disc valves engineered for hard water conditions, ensuring smooth operation and extended service life. The assembly includes a chrome-plated finish and offers both IPS and sweat connection compatibility for installation flexibility across standard piping systems.

Technical Specifications

• Manufacturer: Gerber Plumbing Fixtures
• Model Number: 58-420
• Description: Tub and Shower Fitting – Two-Handle Configuration
• Series: 58-400
• Reference Number: 132421
• Flow Rate: 2 gpm (gallons per minute)
• Mounting Type: Wall-mounted
• Center Distance: 8 in (203 mm)
• Handle Type: Two metal handles (hot and cold control)
• Connection Size: 1/2 in nominal
• Connection Type: IPS or sweat (dual connection compatibility)
• Valve Type: Ceramic disc valve/cartridge system
• Special Design Feature: Hard water-rated ceramic disc cartridges for long-term performance
• Spout Type: Tub spout outlet with integral diverter (optional configuration)
• Finish: Chrome plated
• Body Material: Brass construction for corrosion resistance and mechanical durability
• Cartridge Material: Ceramic disc sealing surfaces within brass valve housing
• Operating Pressure Range: 20–125 psi
• Operating Temperature Range: 40°F to 160°F (4°C to 71°C)
• Trim Components: Chrome escutcheon, handle set, and optional diverter spout
• Application:
  • Professional tub and shower installations
  • Residential and light commercial systems
  • New construction or retrofit applications
• Performance Characteristics:
  • Precision ceramic control for reliable hot and cold water regulation
  • Resistance to mineral build-up from hard water environments
  • Reduced maintenance requirements for long-term use
• Compliance and Certifications:
  • ASME A112.18.1 / CSA B125.1
  • NSF/ANSI 61 and 372 Certified
  • Lead-free compliant per industry regulations
• Installation: Designed for 8-inch center wall installation using standard plumbing tools; compatible with IPS or sweat connections
• Maintenance: Serviceable ceramic cartridge and trim components for field maintenance

Summary

The Gerber 58-420 Tub and Shower Fitting is an 8-inch center, two-handle unit from the 58-400 Series featuring 1/2-inch IPS or sweat connections, ceramic disc valves for hard water resistance, and a chrome-plated finish. Engineered for durability and professional performance, it provides precise flow control and reliable operation in demanding plumbing applications.