Replacement Parts

Technical Information

System FAQs

Reverse Osmosis FAQs

When properly maintained, the Sierra system will provide you with years of trouble-free service. The cartridges in this system must be replaced on a regular basis to maintain efficiency and to ensure high water quality. Test your water every 6 months using a digital TDS meter. Consider membrane replacement when the TDS rejection falls below 85%.

*These cartridges are designed for all plastic-frame Sierra systems and newer metal-frame Sierra systems (purchased in 2005 or after).

	Internet Special Includes the Sierra Prefilter (104381), the 36gpd Membrane (104583) and the Postfilter (104382).	104207	$108.00 Save $20!
	Internet Special Includes the Sierra Prefilter (104381) and Postfilter (104382) and the TDS-EZ meter (100877).	104265	$58.00 Save $20!
	Prefilter*	104381	$20.00
	36 gpd RO Membrane*	104583	$88.00
	Postfilter*	104382	$20.00
	Plastic Faucet	104738	$27.00
	Chrome Faucet (airgap)	103242	$56.00 $40.00 New Lower Price!
	Brushed Nickel Faucet (airgap)	107197	$70.00 $45.00 New Lower Price!
	2-Gallon Storage Tank	104946	$86.00
	TDS-EZ Water Quality Tester	100877	$38.00