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Several types of OPUS water filters

OPUS - Annual Water Filter Replacement Kits

Regular price
$250.00
Sale price
$250.00

Full annual replacement filter kits are available for order here for the entire line of OPUS Point-of-Use water purification systems. Please see details below for what is included in each kit. You can also order the individual filters separately, from the OPUS Water Purification Replacement Filters page.


Full annual replacement filter kits are available for order here for the entire line of OPUS Point-of-Use water purification systems. Please see details below for what is included in each kit. You can also order the individual filters separately, from the OPUS Water Purification Replacement Filters page.



For replacement Ultra Violet bulbs for either the CottagePure or the Whole House systems, please see our Replacement UV Bulbs page; and for other replacement parts, options or upgrades for OPUS drinking water systems, please see our Water Purification System Upgrades page.

Replacement filters for the OPUS Whole House / Point-of-Entry systems are also available.

Components and Store Codes for Each Kit

Advantage – $250 (Complete - All Filters) (PLU 17560)
Stage 1 - 5 micron inline carbon block filter (23788) ($40.00)
Stage 2 - Bone Char Fluoride Filtration (17800) ($60.00)
Stage 3 & 4 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 5 & 6 - Dual 0.5 micron carbon with MTBE/VOC filtration (14256) ($50.00)

Advantage Chloramine Redox - $250.00 (Complete - All Filters) (21017)
Stage 1 - 5 micron inline carbon block filter (23788) ($40.00)
Stage 2 - Bone Char Fluoride Filtration (17800) ($60.00)
Stage 3 & 4 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 5 & 6 - 1 Micron Catalytic Carbon (10616) ($50.00)

AlkaNano (also called the AlkaPlus Freedom Nano) - $500.00 (Complete - All Filters) (21516)
Stage 1 - 5 Micron Inline Carbon Block (23788) ($40.00)
Stage 2 - Bone Char Fluoride filter (17800) ($60.00)
Stage 3 & 4 - Dual 3 lb KDF / 0.6 lb GAC ($100.00) (9395)
Stage 5 & 6 - .5 Micron Carbon ($50.00) (14256)
Stage 7 - .01 Micron NanoFiltration ($100.00) (19761)
Stage 8 - Bioceramic Alkaline Filter ($150.00) (9487)

AlkaPlus - $400 (Complete - All Filters) (19781)
Stage 1 - 5 micron inline carbon block filter (23788) ($40)
Stage 2 - Bone Char Fluoride filter (17800) ($60)
Stage 3 & 4 - 3 lb. KDF / 0.6 lb. GAC (9395) ($100.00)
Stage 5 & 6 - .5 Micron Carbon (14256) ($50.00)
Stage 7 - Bioceramic Alkaline Filter (9487) ($150.00)

AlkaPlus Chloramine Redox - $390.00 (Complete - All Filters) (19780)
Stage 1 - Inline 5 Micron Sediment (15261) ($30.00)
Stage 2 - Bone Char Fluoride filter (17800) ($60.00)
Stage 3 & 4 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 5 & 6 - 1 Micron Catalytic Carbon (10616) ($50.00)
Stage 7 - Bioceramic Alkaline Filter (9487) ($150.00)

AlkaPlus Freedom - $380.00 (Complete - All Filters) (18077)
Stage 1 - 5 Micron Pleated Sediment (6929) $50, for 2/yr, @25.00 each)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - .5 Micron Carbon (14256) ($50.00)
Stage 6 - Bioceramic Alkaline Filter (9487) ($150.00)

AlkaPlus Freedom Chloramine Redox - $380 (Complete - All Filters) (19779)
Stage 1 - Inline 5 Micron Sediment Filter (15261) ($30.00)
Stage 2 & 3 - 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - 1 Micron Catalytic Carbon (10616) ($50.00)
Stage 6 & 7 - .5 Micron Carbon Block (14256) ($50.00)
Stage 8 - Bioceramic Alkaline Filter (9487) ($150.00)

AlkaPlus Freedom Nano - $480.00 (Complete - All Filters) (20382)
Stage 1 - 1 Micron Sediment ($80.00) ($40 X 2) (21387)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC ($100.00) (9395)
Stage 4 & 5 - .5 Micron Carbon ($50.00) (14256)
Stage 6 - .01 Micron NanoFiltration ($100.00) (19761)
Stage 7 - Bioceramic Alkaline Filter ($150.00) (9487)

CottagePure (~Annual) - $189.00 (Complete - All Filters) (19777), for:
- two 30 Micron Sediment Filters (18848) ($20 -- $10.00 x 2);
- a 1 Micron High Capacity Pleated Sediment Filter (22491) ($40.00);
- a 0.5 Micron Filter (flow-restricted to 2.3L per minute) (19742) ($50.00); plus,

- a UV-C Bulb (19222) ($79.99).

The cost for all those first 4 other filters for the CottagePure without the UV bulb (which only needs changing after 12 months use) is $110 (19778).

Freedom (pre-2017 versions) - $230.00 (Complete - All Filters) (18076)
Stage 1 - 1 Micron Pleated Filter (21387) ($80, for 2/year, @$40.00 each)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - Dual .5 Micron Carbon with MTBE/VOC filtration (14256) ($50.00)

Freedom 2017 - $230.00 (Complete - All Filters) (22710)
Stage 1 - 5 Micron Sediment Filter (15261) ($30)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - 1 Micron Catalytic / Activated Carbon Block (10616) ($50.00)
Stage 6 & 7 - Dual .5 Micron Carbon with MTBE/VOC filtration (14256) ($50.00)

Freedom Nano 2017 – $330.00 (Complete - All Filters) (22719)
Stage 1 - 5 Micron Pleated Filter (6929) ($50, for 2/yr, @25.00 each)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - 1 Micron Catalytic / Activated Carbon Block (10616) ($50.00)
Stage 6 & 7 - Dual .5 micron carbon with MTBE/VOC filtration (14256) ($50.00)
Stage 6 - .01 Nanofiltration Filter (19761) ($100.00)

Freedom Panamine Special – $140.00 (Complete - All Filters) (24577)
Stage 1 - 1 Micron Pleated High Capacity Carbon Filter (22491) ($40.00)
Stage 2  - 1 Micron Catalytic Carbon Block (10616) ($50.00)
Stage 3 & 4 - Dual 0.5 micron carbon with MTBE/VOC filtration (14256) ($50.00) 

Freedom Panamine Nano Special – $240.00 (Complete - All Filters) (24375)
Stage 1 - 1 Micron Pleated High Capacity Carbon Filter (22491) ($40.00)
Stage 2  - 1 Micron Catalytic Carbon Block (10616) ($50.00)
Stage 3 & 4 - Dual 0.5 micron carbon with MTBE/VOC filtration (14256) ($50.00) 
Stage 5 - .01 Nanofiltration Filter (19761) ($100.00)

Integrity Freedom Dual Water Purification System - $130.00 (Complete - All Filters) (17521)
Stage 1 - 1 Micron Pleated Filter (21387) ($80.00: 2 at $40.00 each)
Stage 2 & 3 - 0.5 Micron Carbon VOC/MTBE, Chlorine and contaminant removal filter (14256) ($50.00)

Integrity Freedom Dual Chloramine Redox Water Purification System - $130.00 (Complete - All Filters) (21408)
Stage 1 - 1 Micron Pleated Filter (21387) ($80, for 2/yr, @$40.00 each)
Stage 2 & 3 - 1 Micron Activated Catalytic Carbon Filter (10616) ($50.00)

Integrity Advantage Triple Water Purification System - $135.00 (Complete - All Filters) (17522)
Stage 1 - 5 Micron Pleated Filter (6929) ($25.00)
Stage 2 - Bone Char Fluoride Adsorption Filter (17800) ($60.00)
Stage 3 & 4 - 0.5 Micron Carbon Block, MTBE/VOC/Chlorine Taste and Odor Filter (14256) ($50.00)

Integrity Triple Advantage Chloramine Redox Water Purification System - $190.00 (Complete - All Filters) (21406)
Stage 1 - 1 Micron Pleated Filter (21387) ($80.00: 2 at $40.00 each)
Stage 2 - Bone Char Fluoride Adsorption Filter (17800) ($60.00)
Stage 3 & 4 - 1 Micron Carbon Block, MTBE/VOC/Chloramine Taste and Odor Filter (10616) ($50.00)

Integrity Freedom Triple Water Purification System - $230.00 (Complete - All Filters) (20841)
Stage 1 - 1 Micron Pleated Filter (21387) ($80.00: 2 at $40.00 each)
Stage 2 & 3 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 4 & 5 - Dual 0.5 micron carbon with MTBE/VOC filtration (14256) ($50.00)

Nano – $350 (Complete - All Filters) (19792)
Stage 1 - Inline 5 Micron Carbon Block filter (23788) ($40.00)
Stage 2 - Bone Char Fluoride Filtration (17800) ($60.00)
Stage 3 & 4 - Dual 3 lb KDF / 0.6 lb GAC (9395) ($100.00)
Stage 5 & 6 - Dual .5 micron carbon with MTBE/VOC filtration (14256) ($50.00)
Stage 7 - .01 Nanofiltration Filter (19761) ($100.00)

WelLicious Drinking Water System - $320.00 (Complete - All Filters) (23823)
Stage 1 – 5 Micron Sediment (15261) ($30.00)
Stage 2 - SW Water Softening Filter (23457) (x2) ($100.00)
Stage 3 & 4 - Dual 3 lb KDF & 0.6 lb GAC (9395) ($100.00)
Stage 5 & 6 - 1 micron pleated high capacity carbon filter (22491) ($40.00)
Stage 7 & 8 - 0.5 micron carbon MTBE/VOC filter (14256) ($50.00)


Product Options:
Advantage, Annual Filter Kit - $250.00
Advantage Chloramine Redox Annual Filter Kit - $250.00
AlkaNano (or AlkaPlus Freedom Nano) Annual Filter Kit - $500.00
AlkaPlus Annual Filter Kit - $400.00
AlkaPlus Chloramine Redox Filter Kit - $390.00
AlkaPlus Freedom Annual Filter Kit - $380.00
AlkaPlus Freedom Chloramine Redox Filter Kit - $380.00
AlkaPlus Freedom Nano Annual Filter Kit - $480.00
CottagePure Annual (not including UV bulb) - $110.00
CottagePure Annual (including UV bulb) - $189.99
Freedom (pre-2017 versions) - $210.00
Freedom 2017 Annual Filter Kit - $230.00
Freedom Nano Annual Filter Kit - $330.00
Freedom Panamine Special - $140.00
Freedom Panamine Nano Special - $240.00
Integrity Freedom Dual Annual Filter Kit - $130.00
Integrity Freedom Dual Chloramine Filter Kit - $130.00
Integrity Advantage Triple Annual Filter Kit - $135.00
Integrity Triple Advantage Chloramine Redox Kit - $190.00
Integrity Freedom Triple Countertop System Kit - $230.00
Nano Annual Filter Kit - $350.00
Wellicious Drinking Water System Kit - $320.00