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C-342 TDS and EC Calibration Solutions - HM Digital
HM Digital$7.95C-342: TDS and EC Calibration Solutions For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges. FEATURES: NaCl calibration solution, available in 342 ppm Comes in... -
On Sale 15%
10" Replacement Standard RO Clear Filter w/White Rib Cap 1/4" MPT Ports
SaltwaterAquarium$16.99$14.44Standard replacement RODI filter holder for RO Systems. Perfect for replacing cracked filter holders due to freezing, etc. Replacement housing for RO system Standard size for all RO systems using 10" filters 1/4" threaded in and out... -
On Sale 15%
2.5" x 10" White RODI Refillable Screw Top Cartridge
Generic$7.75$6.59Ideal replacement for DI Resin, Carbon, and other media used for the water purification process. Fits standard 10" cartridge housing - Designed for upflow applications to ensure the longest possible exposure time. Twist-On Cap with Sponge to prevent... -
On Sale 15%
Aquatec RODI Pressure Switch (40 psi, 1/4" Push Connect)
SaltwaterAquarium$18.99$16.14These switches, typically mounted near a RODI water holding tank, automatically control the system pump and/or solenoid valve as required. The switches are normally closed and can be pre-set at various shut-off pressures. Pump is re-activated at 15 p -
On Sale 15%
1/4" Tube x 3/8" Stem for RODI Pumps Push Connect - Black
SaltwaterAquarium$18.99$16.14Mur-lok® Fittings - Reducers - Black Features: Leak Resistant Dual EPDM O-rings UV and Chemical Resistant Polypropylene NSF Standard 58 Certified 304 Stainless Steel Gripping Teeth 150 p.s.i. @ 70ºF (10 Bar @ 20ºC) 60 p.s.i. @...