Showing 33–48 of 353 results
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$123.13 USD
- Robust toughened-glass, spear-tip for direct root zone measurement
- Easy to clean
- Gel filled (non-refillable), low maintenance
- Double junction probe
- Waterproof cable joint
- Quality BNC connection
- Dibber included for piloting hole into tough mediums
- 2 meter / 6.56 foot standard cable
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$262.52 USD
Features:
- Test more with a faster sensor response and direct measurements from substrates
- Multimedia friendly, for measurements
- across a range of environments
- Toughened spear tip for direct root-zone
- Simple two point calibration process with 30 day calibration indicator
- Backlit LCD display, low battery indicator, auto off function
- 2 x AAA alkaline batteries included
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$618.75 USD
- Automate pH control in reservoirs of up to 200 US gallons/760 litres
- 10 ml/min peristaltic pump delivers precise control
- Controls pH in the up (alkali) or down (acid) direction
- In-built safety lockouts prevent overdosing
- Dosing routine allows for effective mixing before next dose
- Auto-resume dosing when restarting after power loss
- High and low alarms to alert you when pH is out of range
- Acid- and alkali-resistant delivery tubing
- 2-metre/6-ft probe and power cable lengths and 1.2-metre/4-ft total tubing for best positioning and viewing
- Flexible mounting options for walls, posts and racks
- Easy-to-clean display built for clean environments
- Simple two point calibration process with 30 day calibration indicator
- Backlit LCD display, low battery indicator, auto off function
- 2 x AAA alkaline batteries included
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$73.57 USD
A replacement probe for Bluelab Combo and pH Meters, and Guardian Monitors. Replace only the pH probe, not the whole meter!
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$54.21 – $228.45 USD
- Bio RHIZOTONIC contains a range of vitamins, including vitamins B1 and B2.
- It helps the plant to recover where affected by stress, both abiotic and that caused by inefficent management.
- Increasing plant nutreint use efficency and supporting nutrient uptake aids in the developmennt of a healthy and productive plant.
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OMRI Listed Canada & usa
Bigger sizes can be brought in with 2 days notice.
Call 604-294-3000 to confirm availability
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Sale!
$99.90 – $386.43 USD
5 Liter Expired bottle has date on it of 5/10/2023
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$24.78 – $86.73 USD
CANNA Substra Flores A direct availability and a correct composition of nutrients play a crucial role during the plant’s blooming phase. CANNA SUBSTRA Flores stimulates the fructification and contains all the nutrients that the plant needs during this phase. Advantages of CANNA Substra Flores During the blooming phase considerable less nitrogen is needed for example,…
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$24.78 – $86.73 USD
CANNA Substra Vega CANNA Substra Vega is a complete professional nutrient for the growing phase of plants. It is specially developed for growing in run-to-waste systems. In the beginning of the growing phase, the plant lays the foundation for its eventual yield. Advantages of Substra Vega Characteristics of a healthy and powerful growth are vital…
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$6.58 USD
- Non-toxic and effective
- Contains no pesticides
- Safe around children and pets
- Easy to use
- Trap will not catch beneficial insects
A Favourite with the staff here at Jons
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$18.55 USD
Cha Ching
Late Flowering Formula
( 9 – 50 – 10 )
- Maximizes essential oils
- Promotes heavy resin production
- Enhances flavor and fragrance
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$29.04 – $278.01 USD
ChitoSal uses two powerful plant effectors in order to trigger a cascade response which leads to several beneficial changes.
Use only once every 2 weeks
250 ml Bottle does 100 Liters
500 ml Bottle does 200 Liters
1 Liter Bottle does 400 Liters
4 Liter Bottle does 1600 Liters
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$13.13 USD
Cultivation Nation Flower is a dry soluble fertilizer that supplies the nutrients needed to support fruiting and flowering.
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$11.58 USD
Cultivation Nation Veggie is a dry soluble fertilizer that supplies the nutrients needed to support vegetative growth.
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$24.78 USD
Transform your crop into a high yielding, high quality super crop with Head Masta.
- Improves quality, aromatics and flavours
- Pumps cells with silicon for an increased yield
- Increases oil and resin production
- Improves visual appeal of plants
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$20.13 USD
Hydro A & B is to be used also for soiless or potting soil crops
The CXH Nutrient range is specifically designed for consumable crops. PGR free, easy to use and quality driven, the natural choice for any dedicated grower.
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$26.33 – $200.57 USD
At last, a weight boosting bloom enhancer that actually does the job it is supposed to!
- Increases solid to water ratio for a hard and dense finish
- Massive increases to dry flower weight
- Increases female flowering sites
- PGR Free
