13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pleated MERV 13 Air Filters 6 Pack Grow1 5' Steel Stake Combination (full-cell) pH electrode for

Combination (full-cell) pH electrode for field applications with the HI 9815 Turtle pH transmitter

greenhouses and storage sites

Full battery charge will complete 17

8 7/8" x 19 1/2" SunPad LITE seedling heat mat

These Small

13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pleated MERV 13 Air Filters 6 Pack Grow1 5' Steel Stake Combination (full-cell) pH electrode forNordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200