PetroClear Adapters are made to fit with today’s most popular spin-on filters. They are designed to allow the filter to do its job more easily. Various in-line thread connections and stud mount options allow for different flow rates and system-specific connections.

Part Number Inlet/Outlet Threads Filter Mounting Stud Threads Flow Material & Filter Compatibility
.75N1-12 3/4" NPT 1-12 UNF 3/4" Cast Iron (Fits Non-AD Filters with a 3.70" diameter)
.75N1-12A 3/4" NPT 1-12 UNF 3/4" Aluminum (Fits Non-AD Filters with a 3.70" diameter)
.75B1-12 3/4" BSP 1-12 UNF 3/4" Aluminum (Fits Non-AD Filters with a 3.70" diameter)
.75N1.5-16AD 3/4" NPT 1.5-16 UNF 1" Aluminum (Fits AD filters only with a 3.70” diameter)
.75B1.5-16AD 3/4" BSP 1.5-16 UNF 1" Aluminum (Fits AD filters only with a 3.70” diameter)
1.0N1-12 1” NPT 1-12 UNF 3/4" Cast Iron (Fits Non-AD Filters with a 3.70" diameter)
1.0N1-12A 1" NPT 1-12 UNF 3/4" Aluminum (Fits Non-AD Filters with a 3.70" diameter)
1.0B1-12 1" BSP 1-12 UNF 3/4" Aluminum (Fits Non-AD Filters with a 3.70" diameter)
1.0N1 3/8-12 1" NPT 1.375-12 UNF 1" Cast Iron (Fits WA and PA Filters)
1.0N1.5-16 1" NPT 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)
1.0B1.5-16 1" BSP 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)
1.0N1.5-16AD 1" NPT 1.5-16 UNF 1" Aluminum (Fits AD Filters only with a 3.70" diameter; will not fit 5" diameter filters)
1.0B1.5-16AD 1" BSP 1.5-16 UNF 1" Aluminum (Fits AD Filters only with a 3.70" diameter; will not fit 5" diameter filters)
1.25N1.5-16 1 1/4" NPT 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)
1.5N1.5-16 1 1/2" NPT 1.5-16 UNF 1” Aluminum (Fits Non-AD Filters with a 5" diameter)
1.5B1.5-16 1 1/2" BSP 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)
D2.0N1.5-16 2" NPT 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)
D1.5B1.5-16 1 1/2" BSP 1.5-16 UNF 1" Aluminum (Fits Non-AD Filters with a 5" diameter)

PetroClear Aluminum Heads are epoxy impregnated.