22x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords The Hanna Instruments HI1333B is

The Hanna Instruments HI1333B is a combination (full-cell) pH electrode with a single ceramic junction

The 4' Tomato Tower with support rings is a versitile garden accessory

After propagation and transplant

Dual Fuel’s two-part formula provides the nitrogen (N)

–Flexible end caps for precision pouring

22x23x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack -power-&-lamp-cords The Hanna Instruments HI1333B isNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition