Rite in the Rain No. 37R Black Ink Refill

The Rite in the Rain No. 37R All-Weather Pen Refill features a pressurized black ink cartridge engineered to keep writing in extreme field conditions. It writes at any angle—even upside down—and through water, sweat, grease, and mud without clumping or smearing.

Features & Specifications:

• Brand: Rite in the Rain
• Model: No. 37R
• Ink Color: Black
• Point Size: 0.9 mm
• Cartridge: Pressurized
• Operating Temperature: -30°F to 250°F
• Underwater Performance: Up to 35 ft
• Writes at any angle, including upside down
• Writes through water, sweat, grease, and mud
• Permanent all-weather ink
• Adapter: Plastic Parker®-style retrofit adapter
• Fits: Most Rite in the Rain pens
• Does Not Fit: Pocket Pens (BK92, OR92, FDE92) or Click Action Pens (BK11, OR11)
• Length: 3.5"
• Diameter: 0.25"
• UPC: 632281037217
• NSN: 7510-01-498-1880
• Made in USA