Heavy Duty Cylinders (NFPA)
		Model Range: HD • Cylinders For Abusive Conditions • Combining NFPA dimensional interchangeability and high quality components, the “HD” Series offers excellent performance and long service life, even in the most severe of conditions. External Bearing Ensures Smooth Motion • HD cylinders are fitted with a heavy-duty external rod bearing in the rod end head. • Teflon -impregnated and hardcoat anodized, this bearing ensures smooth rod motion while maintaining rod rigidity and stability. • The entire rod gland and bearing may be quickly removed and replaced without disassembling the cylinder.