4" NPT Female (Rigid Long Handle) x 5" NPT Male Adapter Aluminum FM25NYC25T but you don't need any

but you don't need any of the certifications

w/Horseshoe Handle Shut Off

red vinyl covers are a must for protecting your hose reel investment

5” NPT Male Rigid Fitting Anodized Aluminum

4" NPT Female (Rigid Long Handle) x 5" NPT Male Adapter Aluminum FM25NYC25T but you don't need anySpecifications Female Side 1 4 NPT Female (National Pipe Tapered) Male Side 2 5 NPT Male (National Pipe Tapered) Working Pressure 300PSI Max Test Pressure 1000PSI Max Material T 6061 Aluminum (Aircraft Grade) Finishing Anodized (99. 9% Lead Free) NFPA Standards 1963, 4. 12, 5. 1 5. 6. 4 (Corrosion Resistance) Military Standards MIL A 8625 Type III, Class 1 Industrial Standards International ASTM B221 UL Labs Standards 236 8. 1 Through 8. 2 USDA