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Daily Repeat Timer
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00841
Multiple program timer turns on automatically two or more times in 24 hours. Grounded for safety when used in three-prong electrical outlets.
$22.50 Each
Perma-Nest Plant Tray - 13" x 15" x 3 1/2"
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01228
Perma-Nest Plant Trays are heavy-duty, stackable, and versatile. You will not find a better tray on the market. They are easy to clean and will last for years. Perfect for use as a drip tray. Great for garden starts, and growing wheatgrass, plants, seedlings, microgreens & more. These polystyrene plant trays never harbors bacteria or harmful molds. Tray color may vary.
$11.95 Each
Save 30%
pH Computer
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15148
In one minute test the pH computer determines the acid/alkaline composition. Directions include desired range for 350 plants. Tells user what to do if soil is not in desired pH range.
$12.95 Each
$18.50 Each
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Main menu
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- ANSI Class 2 Products (23)
- ANSI Class 3 Products (6)
- ANSI Class E Products (4)
- Armbands (10)
- Buttons (11)
- Gloves (3)
- Hats & Caps (8)
- Helmets (7)
- Jackets (15)
- Pants (Reflective) (4)
- Pinnies (7)
- Rainwear (10)
- Safety Patrol Belts (5)
- Safety Vests (50)
- Slip-Over Capes (3)
- T-Shirts (8)
- Winter Apparel (19)
- Women's Apparel (4)
-
- Aluminum Traffic Signs (Regular) (80)
- Aluminum Traffic Signs (Reflective) (75)
- Cone Top Sign Holder & Street Sign Sets (4)
- Crosswalk Signs (12)
- Floor & Sidewalk Signs (64)
- Impact Recovery System Signs (6)
- Maintenance Signs (6)
- Paddle & Wand Signs (11)
- Reversible Signs (21)
- School Bus Safety Signs (22)
- Sign Posts & Bases (9)
- Snap-On Cone Signs (28)
- Steel Sign Holder (1)
- Stop Signs (27)
- Vinyl Cone Sign Kits (19)
- Wet Floor Signs & Cones (4)
-
- Astronomy (11)
- Biology (31)
- Books (19)
- Botany (8)
- Bunsen Burners (8)
- Chemistry (97)
- Dissecting Kits & Specimens (16)
- DVDs (50)
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- Electricity (63)
- Glassware / Plasticware (48)
- K'Nex Technology Kits (0)
- Lab Equipment (18)
- Lab Stands & Accessories (18)
- Lab Tools (32)
- Lab Trays & Test Tube Racks (15)
- Life Science (34)
- Light & Color (38)
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- Magnetism (38)
- Magnifiers (15)
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- Porcelain (6)
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