Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

AC Infinity

AC Infinity

AC Infinity

Your cart

Loading...

Estimated total

$0.00 USD

Taxes, discounts and shipping calculated at checkout.

Shop
- Brands
  
  AC Infinity
  FoxFarm
  BuildASoil
  Coast of Maine
  Gaia Green
  Roots Organics
  Grove Bags
  Earth Box
  Technaflora
  Uncle Myc's
- Indoor Grow Equipment
  
  Lights
  Climate Control
  Fans & Ventilation
  Controllers & Timers
  Full Kits
  Tents & Accessories
  Co2 Canisters & Refills
- Hydroponics Equipment
  
  Air Pumps
  Water Pumps
  Tubing & Connections
  Tanks, Lids, & Bucket Systems
  Hydroponic Accessories
  Perlite & Vermiculite
- Soils
  
  Pallet Pricing
  Bulk Soils
  FoxFarm
  Bio365
  DIRTCRAFT
  BuildASoil
  Coast of Maine
  Root Organics
  ProMix
  Worm Castings
  Perlite & Vermiculite
- Nutrients
  
  FoxFarm
  BuildASoil
  Coast of Maine
  Gaia Green
  Cold War Organics
  Root Organics
  Technaflora
  Jacks
  Botanicare
  Athena
- Garden Supplies
  
  Gardening Tools & Accessories
  Earth Box Garden Kits
  Pots, Elevators, & Saucers
  Fabric Pots & Fabric Raised Beds
  Hoses & Yard Supplies
  Kenkashi + Compost Goods
- Pest Control
  
  Shop Pest Control
- Seed Starting
  
  Cloning
  Domes & Accessories
  Seed Starting Soils
- Harvest Season
  
  Shop Harvest Tools
  Storage
  Trimming
  Drying
- DIY & Custom Setups
  
  DIY Systems
  Custom Hydro Setups
- Kits
  
  Starter Kits
  Nutrient kits
  AC Infinity Kits
- Meters & pH
  
  pH Meters & Accessories
Merch
About
- About Us
- Partners & Affiliates
  
  Lettuce Grow
  Roanoke College
FAQs
Events
Blog
Contact

Facebook
Instagram

Shop
Merch
About
- About Us
- Partners & Affiliates
  Lettuce Grow
  Roanoke College
FAQs
Events
Blog
Contact

Search

Skip to product information

1 / of 1

HM

HM 4.0 Calibration Solution 20ml Packet

HM 4.0 Calibration Solution 20ml Packet

Regular price $2.50 USD

Regular price Sale price $2.50 USD

Unit price / per

Sale Sold out

Quantity

(0 in cart)

This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.

Each pack contains 20mL of pH 4.0 buffer solution. 20 pack.

Share

Link

View full details

HM 4.0 Calibration Solution 20ml Packet

1931 Apperson Drive
Salem, VA 24153

HOURS:
Mon - Sat - 10 am - 6 pm
Sun - 11 am - 4 pm

SHOP BY BRAND

AC Infinity
FoxFarm
BuildASoil
Coast of Maine
Gaia Green
Roots Organics
Grove Bags
Earth Box
Technaflora
Do not sell or share my personal information

LINKS

About Us
Our Blog
Contact Us
Accessibility
Events & Workshops
FAQs

Facebook
Instagram

© 2025, Blue Ridge Hydroponics Website by Veritimo Inc. & Blue Honey Rose

Privacy policy

Choosing a selection results in a full page refresh.
Opens in a new window.

Powered by Omni Themes