Cation Resin Selection Chart

Softening Resin

	LOW IRON 0 - 0.1 PPM	MEDIUM IRON 0.1 - 1.0 PPM	HIGH IRON 1.0 - 3.0 PPM	HEAVY IRON 3.0 PPM +	DISSOLVED IRON	ORGANIC IRON
NO CHLORINE	Gold * P/N: ER10001	Gold * P/N: ER10001	Premium * P/N: ER10002	Premium * P/N: ER10002	Premium P/N: ER10002	2/3 Cu.Ft. Fine Mesh P/N: ER10003 PLUS 1/3 Cu.Ft. ProSelect™ Tannin-HP P/N: ER20006-HP
LOW CHLORINE < 0.5 PPM	Gold * P/N: ER10001	Premium * P/N: ER10002	Premium * P/N: ER10002	Heavy Duty * P/N: ER10006	Premium P/N: ER10002	2/3 Cu.Ft. Fine Mesh P/N: ER10003 PLUS 1/3 Cu.Ft. ProSelect™ Tannin-HP P/N: ER20006-HP
MEDIUM CHLORINE 0.6 - 1.5 PPM	Premium * P/N: ER10002	Premium * P/N: ER10002	Heavy Duty P/N: ER10006	Heavy Duty P/N: ER10006	Heavy Duty P/N: ER10006	2/3 Cu.Ft. Fine Mesh P/N: ER10003 PLUS 1/3 Cu.Ft. ProSelect™ Tannin-HP P/N: ER20006-HP
HIGH CHLORINE 1.6 - 3.0 PPM	Heavy Duty P/N: ER10006	Heavy Duty P/N: ER10006	Heavy Duty P/N: ER10006	High Porosity P/N: ER10009	Heavy Duty P/N: ER10006	2/3 Cu.Ft. Heavy Duty P/N: ER10006 PLUS 1/3 Cu.Ft. ProSelect™ Tannin-HP P/N: ER20006-HP
HEAVY CHLORINE 3.1 PPM +	High Porosity P/N: ER10009	High Porosity P/N: ER10009	High Porosity P/N: ER10009	High Porosity P/N: ER10009	High Porosity P/N: ER10009

All units will perform well to a varying degree with any cation resin. The above table is strictly suggestive for obtaining optimal performance from your unit and extending the life of your resin bed.

When in doubt, ProSoft™ Premium is your best value for an all-around softening resin.

* Cabinet models can or should substitute ProSoft™ Fine Mesh resin for faster kinetics.

This table is based on SWT’s conventional wisdom only. Performance can still vary from factors such as high temperatures, oil in the water, silica or other local water characteristics. Contact your SWT representative for further assistance.

ADDITIONAL INFORMATION: Resin Capacity Comparison Chart | Ion Exchange Resin Guide

ProSoft™ and ProSelect™ are trademarks of Safe Water Technologies, Inc.

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	Safe Water Technologies, Inc. 996 Bluff City Boulevard Elgin, IL 60120 USA
	Telephone: +1.847.888.6900 Facsimile: +1.847.888.6924 E-mail: info@swtwater.com https://www.swtwater.com Last Updated: April 1, 2024