Sulphate of potash
SKU: 1130680723

Sulphate of potash

Sale price$30.56 Regular price$33.95
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Sulphate of potashSimple and easy to use Accurate and instant results For testing soils and potting mixes Directions For Use Prior to collecting a soil sample, remove any debris or mulch from the surface. For soils around shallow rooted plants, take a sample at a depth of 10 15 cm below the surface. For soils around deep rooted trees and shrubs, take a sample at a depth of 25 30cm. For soils or potting mixes in Pots and Containers, take a sample at a depth of root

Simple and easy to use
Accurate and instant results
For testing soils and potting mixes
Directions For Use

Prior to collecting a soil sample, remove any debris or mulch from the surface.

For soils around shallow rooted plants, take a sample at a depth of 10-15 cm below the surface. For soils around deep-rooted trees and shrubs, take a sample at a depth of 25-30cm.

For soils or potting mixes in Pots and Containers, take a sample at a depth of root zone.

If the collected sample is hard and lumpy, crush to make it finer for easy mixing.

MEASURING pH

Place a small soil sample (about half a teaspoon) on the testing plate provided.
Add a few drops of indicator Liquid just enough to stir into a thick paste.
Dust the white Barium powder from puffer bottle on the moist paste.
The white powder dusted on the paste, changes colour within a minute.
Compare the colour change on paste with the colour chart provided to the nearest colour and read the pH value.
Wash both plate and mixing rod thoroughly after each test to avoid cross contamination.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 1130680723

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4.4 ★★★★★
Based on 1871 reviews
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Verified Purchase
H. T.
Alexandria, US
★★★★★ 5
premium feel in the hand.
Can't really say whether it's that good or not elecronics wise since I didn't test it but it works like it's supposed to. Meanwhile, the housing oh man. It's premium. It feels like hard aluminum or something, very nice. Edges are rounded too with just the right sharpness like a macbook. Others would've been plastic. This is really nice for the price and if the specs really are 10Gbps, that's really good because most in this price range is 5Gbps.
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Reviewed in the United States on March 2, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 1
Failed to support desktop PCs with USB 3.2 Gen 2 ports
Does not work with my HP mini PC with USB 3.2 gen 2 ports - when connecting USB portable SSDs to the hub. You won't believe it, but many USB 3.2 Gen 2 hubs only support laptops not desktop PCs (except hubs that have dedicated power supply for higher power USB devices e.g. SSD/HDDs) when connecting USB portable SSDs to the hub. We need a major fix from many of the USB hub vendors so these products can work with desktop PCs that have USB 3.2 Gen 2 ports. Workaround: Just directly connect the USB portable SSD to the PC instead. If you need more USB ports, pick up a good old USB 3.0 hub. They're working correctly with portable USB SSDs when working with desktop PCs. (You'd need a powered USB hub if you're connecting 2 or more portable SSDs - do your own calculation: 5V - 1A per SSD/HDD).
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Reviewed in the United States on November 2, 2025
E
Verified Purchase
eg 123
Massapequa, US
★★★★★ 5
Perfect for ROG Ally X
Want to hook up a keyboard, mouse, headset, AND external display to a ROG Ally X? This will do it and it only takes up one (USB4) port on the Ally X. Oh, and it will also provide enough power to charge the Ally and still have juice for all the other ports. Update: I’ve now tried a few USB4 hubs because I also want Ethernet which this doesn’t have. Unfortunately I’ve discovered that most of them seem to overheat after awhile and I loose connectivity on some of the ports (for whatever reason it’s always the type A ports on the hubs that fail). After letting them cool down, the other USB hubs work again, but it’s still frustrating. This StarTech hub is the only one that works for hours. It’s a little bulkier than other hubs I’ve tried, but that’s probably because it needs to be that way for proper heat dissipation?? Anyway, I wish it had a few more ports (including Ethernet), but for reliability this thing is the best I’ve found.
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Reviewed in the United States on July 31, 2024
A
Verified Purchase
Alissa
Omaha, US
★★★★★ 5
The Best!
This thing is amazing! Worked right out of the box. No drivers to install, no confusion, just plug and go. I'm using this hub to connect a mouse, a keyboard, and a monitor to my 2025 MacBook Air (M4). Before buying this I bought a complicated, powered hub for 2x the price and wasted multiple hours trying to get the $%^&(*& thing to work, which it never did. If you want to run a display and a few peripherals, this Startech hub is the absolute best bang for your buck.
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Reviewed in the United States on December 8, 2025
M
Verified Purchase
Michael Cheng
Alexandria, US
★★★★★ 1
Quality Control Issues
I want to like this dock, I really do. I purchased it with the intention of using it as a hub for my phone + usb-c external display. The pass-through charging never worked on this dock. Tried multiple cords and tested the dock with nothing plugged into any of the USB ports -- all of the power disappears somewhere onto the hub and the actual charge rate on my phone slows to a trickle. With nothing connected, it estimates >24hrs to charge from 30% to full. The plus side is that the usb ports do work, though the usb-c display went from 100% reliability to <50% within a few months of purchase. Extremely frustrating.
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Reviewed in the United States on September 24, 2024

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