Natural Chemistry Calcium Increaser, 1.83 lb Bottle | 14205NCM

Natural Chemistry Calcium Increaser is designed to safely and effectively raise calcium hardness levels in spa and hot tub water. Proper calcium hardness, ideally between 150–250 ppm, is essential for protecting spa surfaces and equipment from corrosive water conditions. Low calcium levels can lead to pitting, etching, and equipment damage, making this product a key component in a balanced water maintenance routine.

In addition to preventing corrosion, maintaining proper calcium levels helps reduce cloudy water and supports overall water clarity and comfort. Easy to use and fast-acting, this formula ensures long-lasting spa health and performance.

Model: 14205NCM
Product Type: Spa Calcium Increaser
Container Size: 1.83 lb Bottle
Function: Raises calcium hardness in spa and hot tub water
Ideal Range: 150–250 ppm calcium hardness
Benefits: Prevents corrosion, protects spa surfaces and equipment, improves water clarity
Application: Simple to apply and fast-dissolving
Compatibility: Safe for use with all spa sanitizing systems

SKU: 14205NCM

Hours Of Operation:

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
Handling time is typically only 1 day.
Any item ordered after 1pm Phoenix time, may not ship same-day.
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Return Policy:

All products, except as noted below, are eligible for return up to 30 days after receipt of item.
For returns, an RMA form must be filled out HERE or customers can call for additional help.
Shipping costs will be deducted from all returned items.
Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
Items broken, damaged, or inoperable due to installer error will not be refunded.
Fill out the return form or give us a call to obtain an RMA and return shipping label.
There are no returns on the Pentair Colorsync 618031
No returns on pool cleaners.
No returns on opened seals and o-rings.
No returns on capacitors.
If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
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