Allstar Performance 20AN Fitting Black | ALL31140 1994-gmc-sonoma-esi8949297 "name":"What does dual pass mean

"name":"What does dual pass mean for cooling on the ALL30037

What engines is this compatible with

2019 Buick Cascada Premium 2017

"name":"What tube diameter does the ALL14453 chassis bracket fit

Year Make Model Submodel 2011-2016 Chevrolet Express 2500 Base 2011-2016 Chevrolet Express 3500 Base 2011-2016 Chevrolet Express 3500 LS 2011-2016 Chevrolet Express 3500 LT 2015-2016 Chevrolet Silverado 2500 HD High Country 2011-2016 Chevrolet Silverado 2500 HD LT 2011-2016 Chevrolet Silverado 2500 HD LTZ 2011-2016 Chevrolet Silverado 2500 HD WT 2015-2016 Chevrolet Silverado 3500 HD High Country 2011-2016 Chevrolet Silverado 3500 HD LT 2011-2016 Chevrolet Silverado 3500 HD LTZ 2011-2016 Chevrolet Silverado 3500 HD WT 2011-2016 GMC Savana 2500 Base 2011-2016 GMC Savana 3500 Base 2011-2016 GMC Savana 3500 LS 2011-2016 GMC Savana 3500 LT 2015-2016 GMC Sierra 2500 HD Base 2011-2016 GMC Sierra 2500 HD Denali 2011-2016 GMC Sierra 2500 HD SLE 2011-2016 GMC Sierra 2500 HD SLT 2011-2014 GMC Sierra 2500 HD WT 2015-2016 GMC Sierra 3500 HD Base 2011-2016 GMC Sierra 3500 HD Denali 2011-2016 GMC Sierra 3500 HD SLE 2011-2016 GMC Sierra 3500 HD SLT 2011-2014 GMC Sierra 3500 HD WT

Allstar Performance 20AN Fitting Black | ALL31140 1994-gmc-sonoma-esi8949297 "name":"What does dual pass meanThis is a water pump fitting, 20 AN Male to 1 1 4 12 in Male O Ring. Constructed from Aluminum, Black Anodized. Designed for use with In Line Water Pumps. Sold individually. Compatibility Universal fit for systems using 20 AN Male to 1 1 4 12 in Male O Ring for In Line Water Pumps; not matched to a particular make or model. FAQ What does this fitting connect? This water pump fitting connects 20 AN Male to 1 1 4 12 in Male O Ring. What is it made of?