RAINBOW™️ AUTOMATIC CHLORINE/BROMINE SIZING CHART

Ordering Information

Model Chamber Capacity Maximum Erosion in 24 Hours¹ Treats Pool/Spa Size H W D Service Clearance for Lid Removal
1 in. Tablet Qty. 1 in. Tablet Wt. 3 in. Tablet Qty. 3 in. Tablet Wt. @ 10 ppm @ 5 ppm @ 2-1/2 ppm
#300¹ ² 98 3.5 lbs. 11 4.8 lbs. 1.19 lbs. 11,900 23,800 47,600 21 in. 7 in. 12 in. 22-1/4 in.
#302 with spa chamber¹ ² 15 0.5 lbs. 0.5 lbs. 500 1,000 2,000 21 in. 7 in. 12 in. 22-1/4 in.
#300-19¹ ² 153 5.5 lbs. 20 8.8 lbs. 1.30 lbs. 13,000 26,000 52,000 28-1/2 in. 7 in. 12 in. 29-3/4 in.
#300-29¹ ² 237 9.8 lbs. 29 12.7 lbs. 1.41 lbs. 14,100 28,200 56,400 38-1/2 in. 7 in. 12 in. 39-3/4 in.
#300-29X¹ ² commercial model 237 9.8 lbs. 29 12.7 lbs. 8.05 lbs. 80,500 161,000 322,000 38-1/2 in. 7 in. 12 in. 39-3/4 in.
#320 bottom feed¹ ² 98 3.5 lbs. 11 4.8 lbs. 0.67 lbs. 6,700 13,400 26,800 17-3/4 in. 5 in. 10 in. 19 in.
#320 top feed¹ ² 98 3.5 lbs. 11 4.8 lbs. 1.75 lbs. 17,500 35,000 70,000 17-3/4 in. 5 in. 10 in. 19 in.

Note

! CALIFORNIA PROPOSITION 65 WARNING WARNING: Cancer and Reproductive Harm. AVERTISSEMENT: Peut Causer le Cancer et des Dommages au Système Reproducteur. ADVERTENCIA: Cáncer y Daño Reproductivo. P/N 200174.A www.p65warnings.ca.gov.
¹ Based on use of 1 in. Trichlor in 24 hours. Use of 3 in. tablets or sticks or bromine tablets will lower results. For 8 hour turnover divide by 3.
² NSF listed for public or residential use in Swimming Pools, Spas or Hot Tubs using 1” Trichlor tablets and when used with a flow indicating device such as a Rainbow Model # R172080.
This chart is only a suggested guide. Consult your local authority to determine their guidelines if needed. Results may vary due to pool/spa equipment and many other factors.
WITH 10 in. FEEDER EXTENSION ON #300 – REFER TO #300-19, max. height 11 in. 6 PPM-COMMERCIAL POOLS & SPAS
WITH 20 in. FEEDER EXTENSION ON #300 – REFER TO #300-29, max. height 21 in. 3 PPM-RESIDENTIAL POOL & SPAS
Output rating for Bromine is not NSF Certified.

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