VEVOR PEX Pipe 3/4 Inch, 100 Feet Length PEX-B Flexible Pipe Tubing for Potable Water, Pex Water Lines for Hot/Cold Water & Easily Restore, Plumbing Applications with Free Cutter & Clamps ,Blue

Yes, according to the product description, the PEX-B pipe can be used with expansion rings and other common fittings.

Yes, it is suitable for hot water applications. The product description states that this PEX-B pipe has a wide temperature range from -40°F to 203°F, making it resistant to freezing and bursting in different weather conditions.

Yes, stainless steel clamps are included to provide a secure seal, according to the product description.

According to the product description, it resists freezing and bursting in different weather conditions, offering outstanding explosion-proof, leak-proof, freeze-proof, and corrosion-resistant properties.

Yes, this is good for under ground.