Contact Retention Tank Chlorine or Peroxide 2465 115 Gal. 2" In-Out

Contact Retention Tank Chlorine or Peroxide 2465 115 Gal. 2" In-Out
Code: T2001840

$1,995.00 $4,995.00 List Price

In Stock!

  • Description
  • Specs
  • Warranty
  • Documents

Dimensions and Capacity Guide

ModelCapacityInlet - Outlet TypePipe Size OptionsDimensions Incl Vacuum Break
CWS-105415 GallonsIn-Out At TopIn-Out: 1"Diameter: 11" Height: 71"
CWS-135430 GallonsIn-Out At TopIn-Out: 1"Diameter: 14" Height: 71"
CWS-166550 GallonsIn-Out at TopIn-Out: 1-1/2"Diameter: 16.5" Height: 75.5"
CWS-216290 GallonsIn-Out at TopIn-Out: 1-1/2"Diameter: 21.5" Height: 84.5"
CWS-2465115 GallonsIn-Out at TopIn-Out: 2"Diameter: 24.5" Height: 96"


  • CWS Retention Contact Mixing Tanks are great for chlorination or peroxide injection systems!
  • Install the Inlet and Outlet pipes at the top,(recommended for maximum retention)
  • Pipe sizes from 1" to 2" NOTE: if you need 3/4" it is easy to use a pipe bushing to adapt to 3/4".
  • Unlike other contact tanks rated for 75 PSI max, this tank is rated for 125 PSI.
  • Heavier duty, longer lasting.
  • This attractive contact tank is a durable easy-to-install retention tank designed to provide optimum contact time during chemical treatment.
  • These lightweight seamless totally non-corrosive retention tanks are ideal for new and replacement installation where longest life is desired.
  • 100% non-metallic polymer materials.
  • Impervious to chemical attack.
  • Seamless one-piece inner shell, certified.
  • No vulnerable interior tank coating.
  • 125 psig operating pressure.
  • Drain is easy to install using PVC or stainless steel ball valves.
  • NOTE: vacuum relief valve required for warranty.
  • Frequently Asked Questions

  • Question: What size should I order for oxidizing iron, odors or for mixing?
  • Answer: For most residential applications where you are injecting chlorine, air, ozone or other chemicals before your filtration system, the 15 or 30 Gallon Contact Tanks work good. These are the most common sizes when the water is flowing at up to 15 gallons per minute, which is common for most home water wells. A contact time of 1 -2 minutes works great when you are looking to destroy odors or oxidize iron or manganese before a filter system.
  • Question:  I have 3/4" piping, is there a 3/4" size?
  • Answer:  The 1" size can easily be adapted down to 3/4" with common pipe reducer fittings available at hardware stores.
  • Question: What size should I get if I wish to disinfect water?
  • Answer: This will depend on the pH and the concentration of the chlorine, ozone or peroxide you are injecting, but generally you would want about 10 minutes of contact time. Contact us for more information and assistance in sizing if you are using these contact tanks for disinfection.


Weight: 102.00 lbs


Two year warranty from date of installation. Contact tanks installed without a vacuum breaker are not covered under warranty

Manufacturer: CWS

Manufacturer #: T2001840

Download Installation Guide