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Hydrofarm - Huge Savings! Save up to 14%


Huge Savings! Up to 14% off on Hydrofarm products at In The National Interest. Hurry! Limited time offers. Offers valid only while supplies last.



Hydrofarm Quantum Photosynthetically Active Radiation (PAR) Meter ..#FBEW435H 546Y34156SW628170
Hydrofarm Quantum Photosynthetically Active Radiation (PAR) Meter ..#FBEW435H 546Y34156SW628170
In Stock
$146.37
$146.36
QUANTUM PAR METER Fully portable handheld PAR meter features our highly accurate, integrated Quantum Sensor that measures PAR (Photosynthetically Active Radiation) flux in wavelengths ranging from 400 to 700 nm. It measures up to 10,000 μmol compare...


Hydrofarm HGGR50 Rubber Grommet (25 Pack), 1/2''
Hydrofarm HGGR50 Rubber Grommet (25 Pack), 1/2"
In Stock
$11.95
$11.20
You Save: 6%

mpn: HGGR50, ean: 0638104005647,

Rubber grommet will provide a watertight seal in DIY systems and can replace worn, older grommets. For use with 1/2" connectors, pack of 25.Provides watertight seal in hydroponics connections. Use in DIY systems or to replace worn grommets in existin...


LEAKTITE B5GSKD 5GAL Black Plastic Pail
LEAKTITE B5GSKD 5GAL Black Plastic Pail
In Stock
$19.99
$17.68
You Save: 12%

mpn: HG5G, ean: 0885828821514,

Hydrofarm hg5g 5-gallon black bucketBucket. Ideal for building your own hydroponic system. Great for containing and transporting liquids and solids. Use as a reservoir in simple hydroponic systems. Steel carrying handle with an ergonomic grip. ...


Hydrofarm HGGR75 Rubber Grommet (25 Pack), 3/4''
Hydrofarm HGGR75 Rubber Grommet (25 Pack), 3/4"
In Stock
$15.95
$15.22
You Save: 5%

mpn: HGGR75, ean: 7131405541249,

Rubber grommet will provide a watertight seal in DIY systems and can replace worn, older grommets. For use with 3/4" connectors, pack of 25.Provides watertight seal in hydroponics connections. Use in DIY systems or to replace worn grommets in existin...


Hydrofarm Y Connector, 6 by 6 by 6-Inch
Hydrofarm Y Connector, 6 by 6 by 6-Inch
In Stock
$17.95

mpn: ACY666, ean: 0638104006897,

Maximize your airflow without cost-prohibitive, structural ductwork changes with these Y connectors. Made from , galvanized construction, Y connectors allow you to vent multiple areas with one fan. Use them when you don't want to invest in new fans o...


Active Air Stainless Steel Duct Clamps, 10'' (Pack of 2)
Active Air Stainless Steel Duct Clamps, 10" (Pack of 2)
In Stock
$11.12
$9.54
You Save: 14%

mpn: ACC10, ean: 0638104003711,

Worm drive adjustable w/screwdriver for a super-secure fit. Made of stainless steel and is rust resistant. Two clamps per pack.Stainless steel and rust resistant. Worm drive adjustable w/screwdriver. Two clamps per pack. Secures ducting tightly in pl...



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