Product Description Reviews Replacement Quatro On/Off Valve for Quatro PGR SuperFlow Dust Collector (our 8541479). Show More Custom Field __uomdescrip Each Overall Rating 0.0 0 Reviews Write a Review Create a Review Quatro On/Off Valve for 8541479 Overall Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Add a Headline * Add a Review *