Explore the full range of hydroponic supplies at Holland Horticulture. From LED grow lights and plant nutrients to grow tents, ventilation systems, and climate control solutions — everything you need for successful indoor growing is right here. We stock trusted brands like Lumatek, Telos, Atami, Canna, and many more, with expert support and fast UK delivery.
Threaded Elbow Male 16MM-16MM M.BSP
Sale price£0.85
Threaded Inlets
Sale priceFrom £0.75
Threaded Tee Pieces
Sale priceFrom £1.15
Time-r Plug-in Digital Timer
Sale price£30.00
Top Climate Supreme 15000
Sale price£5,860.95
Torus Perfect pH 35 Gal
Sale price£110.00
Trim Buddy Trimming Bag
Sale price£130.00
TrolMaster - Thermostat Station (TS-2)
Sale price£122.95
TrolMaster 16ft Extension Cable (ECS-4) for Aqua-X
Sale price£21.95
TrolMaster 24V Control Board (OA6-24)
Sale price£96.95
TrolMaster Aqua-X Irrigation Control System (NFS-1)
Sale price£351.95
TrolMaster Aqua-X Reservoir EC/Temp Sensor (PCT-1)
Sale price£96.95
TrolMaster Aqua-X Reservoir pH Sensor (PPH-1)
Sale price£84.95
TrolMaster Day/Night Digital Humidity Controller (BETA-6)
Sale price£106.00
TrolMaster Day/Night Fan Speed Controller (BETA-2)
Sale price£87.00
TrolMaster Day/Night Temperature Controller (BETA-4)
Sale price£75.95
TrolMaster Digital CO2 PPM Controller (BETA-8)
Sale price£305.95
Trolmaster Fan Control Adapter
Sale price£63.95
TrolMaster Hawkeye Temperature, Humidity & CO2 Monitor (CM-1)
Sale price£229.95
TrolMaster Hydro-X 3 in 1 Environment Control System (HCS-1)
Sale price£351.95
TrolMaster Hydro-X AC Remote Station (ARS-1)
Sale price£109.95
TrolMaster Hydro-X CO2 Control Station (DSC-1)
Sale price£89.95
TrolMaster Hydro-X CO2 Sensor (MBS-S8)
Sale price£225.95
TrolMaster Hydro-X Dual Condition Adaptor (DCC-1)
Sale price£74.95
TrolMaster Hydro-X Lighting Control Adapter D (LMA-12)
Sale price£59.95
TrolMaster Hydro-X Lighting Control Adapter F (LMA-14)
Sale price£59.95
TrolMaster Hydro-X Lighting Control Adapter G (LMA-10)
Sale price£52.99
TrolMaster Hydro-X Lighting Control Adapter T (LMA-T)
Sale price£91.95
TrolMaster Hydro-X Program Control Station (DSP-1)
Sale price£89.95
TrolMaster Hydro-X Smoke Detector (MBS-SD)
Sale price£58.95
TrolMaster Hydro-X Temperature Control Station (DST-2U)
Sale price£89.95
TrolMaster Hydro-X Thermostat Station (TS-1)
Sale price£109.95
TrolMaster Hydro-X Water Dectector (WD-2)
Sale price£74.95
TrolMaster Sensor Board for Aqua-X AMP-2
Sale price£116.95
Trolmaster SPH1 Slitter Hub With Cable
Sale price£33.95
TrolMaster TC-1 Camera
Sale price£149.95
Trolmaster Temp/Humidity Station (HS-1)
Sale price£122.95
TrolMaster Temp/Humidity/Light 3 in 1 Sensor (MBS-TH)
Sale price£79.95
TrolMaster Tent-X System Controller
Sale price£288.00
TrolMaster Water Content Sensor (WCS-1)
Sale price£255.00
Trolmaster WCS2 Aqua-X 3 in 1
Sale price£332.95
Twin 16" Wall Fans
Sale price£45.00
Twin Cool Shade System
Sale priceFrom £69.95
Twin Coolshade Reflector
Sale price£69.95
Unheated Propagators
Sale priceFrom £8.95
Unis CO2 Controller
Sale price£168.55
Uvonair CD1200
Sale price£1,088.99