Proto J8181 T500 Double Box Wrench Alloy Steel, Chrome, 1 2 in_9 16 in Head Size, 8 3 4 in Overall Lg, Offset 4456013 Sediment Item Quick Connect Filter Sediment Item Quick Connect Filter Micron Rating 5 micron Fits Brand Aqua Pure Standards NSF 42 Filter Reduces Chlorine Taste The large drainage holes facilitate drainage Box Ends Feature The Torqueplus(TM) Design Offset 60 Degrees Wrench Style Double Box End Insulated No Wrench Material Alloy Steel Tether Style Not Tether Capable Box End Type 12 Point Box End Ratcheting No Head Offset Angle 60 Degrees Handle Color Silver Non Magnetic No Handle Type Steel Nonsparking No Measurement Type SAE Grip Style Plain 33 lb Number of Points 12 Corrosion Resistant Yes Head Movement Fixed Ratcheting Configuration Non Ratcheting Tether Capable Standard Tool (Accessory Needed for Tethering) Features Full Polish Wrenches Meet and Exceed Stringent Aerospace Specification AS4984A Which Requires Tools to Have A Thicker Nickel Chrome Coating for Greater Corrosion Resistance