Apera Instruments GroStar GS1-E Replacement pH Electrode Bubble Bags & Wash Systems Gently dig into the soil

Gently dig into the soil surface

5 Inch - 40 GPM Max (Female NPT)

even if the knobs are accidently bumped

excellent home for microbes and a slow release nutrient holder that will add to the long term excellence of this Perma Soil

but it’s a great incognito technique if you throw an extra small personal CVault inside

Apera Instruments GroStar GS1-E Replacement pH Electrode Bubble Bags & Wash Systems Gently dig into the soilGroStar GS1 E replacement pH electrode Replacement GS1 probe measures pH and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Low resistance lithium glass membrane Double junction structure uses blue gel electrolyte without the air bubble 1 year warranty