Red Sea Fish Pharm ARE21426 Reagent Phosphate Pro Refill Kit for Aquarium, 100 Tests
$34.99
Price: $34.99
(as of Nov 10, 2025 08:25:44 UTC – Details)
Red sea phosphate Pro refill kit is an advanced colorimetric test with comparator, measuring the level of phosphate in reef aquarium to an exceptionally high accuracy of 0. 02ppm PO4. This refill kit, when used in conjunction with the nitrate Pro refill kit, enables accurate dosing of No3: PO4-X (biological nitrate and phosphate reducer) which is part of the complete reef care program. This kit includes a durable, chemical resistant plastic case, analytical grade glass vials and enough materials for up to 100-tests.
Is Discontinued By Manufacturer : No
Product Dimensions : 6 x 4 x 2.5 inches; 4 ounces
Item model number : 306018
Department : Adults, Unisex
Date First Available : December 10, 2010
Manufacturer : TopDawg Pet Supply
ASIN : B005BOH0A8
Best Sellers Rank: #188,117 in Pet Supplies (See Top 100 in Pet Supplies) #284 in Aquarium Test Kits
Customer Reviews: 4.0 4.0 out of 5 stars 12 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Phosphate Pro refill kit is an advanced colorimetric test with comparator
Measuring the level of phosphate in reef aquarium to an exceptionally high accuracy of 0. 02ppm PO4
This test kit, when used in conjunction with the nitrate Pro test kit, enables accurate dosing of NO3: po4-x (biological nitrate and Phosphate reducer)
This kit includes a durable, chemical resistant plastic case, analytical grade glass vials
Includes material for up to 100 tests
6 reviews for Red Sea Fish Pharm ARE21426 Reagent Phosphate Pro Refill Kit for Aquarium, 100 Tests
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$34.99
Robert –
Five Stars
Works but didn’t realize this was a refill package. Still using it. Thanks
dave –
Not as pictured
I got this not the one they show this one suck canât get a single color thatâs on the wheel no where close
Carolyn –
Reagent expires 7 months from delivery
I like the product, have used it for a while. The issue is the product expires 7 months from the time it was delivered. 100 tests are advertised from the refill kit. I test once a week which means I will get less than 30 tests out of it before it expires.
StephenShh –
Update: I received a replacement and this is what it looked like upon arrival. Opting to get refund & taking business elsewhere
For the second time which Iâve ordered this product, the bottles have leaked in transportation, emptying much of the regent. A more secure cap on bottle A seems necessary.
Al –
Test result
The result were good. I expected at a low level the would be better , the results were very helpful.
Juan Manuel Sanchez Villanueva –
But in the description says it contains the comparator,a durable, chemical resistant plastic case, analytical grade glass vials, but it does not contain it. there are only the two chemical reactors.