Watermaker parts list

  • HP pump: Hypro 2345B-P, 4.7 gph, 3/4” shaft; ~$470
  • Boost pump: Jabsco Water Puppy 18660-121 (12V self-priming, 6-7 gpm); ~$120, Amazon.com
  • Membrane housings (x2): 40” long, 2.5” diameter (Codeline or A&M Composites); ~$250 used, $400 new
  • Membranes (x2): Filmtec SW30-2540; ~$200 each
  • Pressure relief valve: Nupro Purple Spring
  • Water filter housings (x3): 3/4” fittings
  • Water filters: 5- and 20-micron and charcoal
  • Flow meters: Dwyer VFB-81-SS, 6-60 gph; Dwyer VFB-86-SS, .5-5 gpm
  • Pressure gauges: oil filled, all stainless steel; high pressure, 0-1400 psi; low pressure, 30-70 psi
  • Bypass valve (1/4 turn): Aquapro or McMaster, rated for 1000 psi
  • Three-way valves: SMC 1/2” FNPT branch; 1/2” FNPT three-way ball valve, model #22152
  • High-pressure hose: 1000 psi, size and length appropriate for your boat (see diagram); stainless-steel fittings
  • Low-pressure hose: Size and length appropriate for your boat (see diagram); stainless-steel fittings
  • Electromagnetic clutch for high-pressure pump (optional)
  • Pulley for high-pressure pump
  • Intake strainer: Vetus, Shurflo, etc.
  • Swagelok or Yor-Lok fittings
  • Needle control valve