It has no moving parts and no need for a vacuum relief valve

Rounded Bottom Edges: With the rounded edges

all while ensuring unrestricted airflow to prevent wand "suck down

Stainless Steel Head tool offers durability and value for money

SKU AH41 Shipping Weight 0

PMF 3.5 inch 500psi Stainless Steel Upholstery Tool (External Jet) Flojet It has no moving partsPMF Upholstery Tool 3. 5 Inch External Jet 500psi Stainless Steel Head 3. 5" wide stainless upholstery tool designed to reach and clean where others miss. Great for detailing cars as well as normal upholstery and stair cleaning. Can be used with pressures up to 500psi. Replacement Parts: PMV1245B Valve PMV124V5B Valve Repair Kit AW45