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- Spearit offers Specta lines (400, 550, and 750 lb) on 10-1000 yard rolls and 900 lb Kevlar line. The sell it as spearfishing line, but they say their manufacturer strength tests the line.
- Spearit also has an Amazon storefront with a wider selection of Spectra and Kevlar lines.
- Go2Marine offers 1400-4,000,000 lb Spectra rope by the foot and on 600 and 1200 ft spools. It seems well speced.
- Paragear offers 100-1000 lb PIA and MIL-spec nylon paracord and braided line. They also offer 400-1575 lb braided Dacron lines, 725-1500 lb Specta microlines, and 500-1000 lb Velcron lines. All are offered by the yard or on 100 yard spools.
- Emma Kites offers 300-4000 lb Dyneema line on 50-500 ft spools, 70-2000 lb braided and twisted Kevlar line on 50-500 ft spools, and 50-500 lb Dacron line on 500 on 1000 ft spools. They sell it as kite string. Shipping is free.
- Emma Kites also offers 100-2000 lb braided Kevlar line on 50-100 ft spools on Amazon.
Inks
- MarkingDevice sells MIL-I-6093 inks in 4oz - 1 quart
Hardware
- D.J. Associates supplies all kinds of links, snaps, grommets, etc. They also supply nylon webbing and thread. If you cannot find what you need online, they say to call them, and they will try to track it down.
- Giant Leap Rocketry sells a variety of recovery paraphernalia including sliders