Scientific Anglers
Scientific Anglers Sonar Stillwater Parabolic Sink Fly Line
Scientific Anglers Sonar Stillwater Parabolic Sink Fly Line
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DESCRIPTION & FEATURES
DESCRIPTION & FEATURES
SINKS IN A U-SHAPED PROFILE
Sure, the SONAR Stillwater Parabolic Sink sounds scientific, and that’s because it is. These lines sink in a U-shape through the water column, suspending flies just above the bottom and creating enticing action with each strip. Built with 10- and 20-foot textured hang markers, these lines are a stillwater angler’s dream and something many fish will never have seen before.
- Designed specifically for the demands of stillwater anglers
- Based on popular MPX taper
- Overweighted by two line weights for multiple flies and long leaders
- Features 10-foot and 20-foot textured hang markers
- Seamless Density technology provides a smooth transition between densities, eliminates hinging, and provides a straight-line connection to the fly
- Sinking in a U-shaped profile, this line features a Sink 3 running line, Sink 5 head, and a Sink 3 tip
- SA SD PRBLC WF X S# S# S# (X = line weight; # = sink rate)
TAPER DIAGRAM
APPLICATIONS
SPECIFICATIONS
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* Grain weight for the first 30′




At Spawn Fly Fish, we’re proud to carry a handpicked selection of products for anglers of all levels. Explore top brands like Sage, Redington, Douglas LRS, Ross Reels, and more. Whether you’re tying with Shrimp Eyes, crafting with Unreal Dubbing, or looking for Loctite Super Glue Extra Time Control to secure your creations, you’ll find everything you need here.We also stock a wide range of fly tying materials, fly rods, and fly reels—including favorites like Tibor Fly Reels, Lamson Fly Reels, and Redington Fly Reels. For complete guides on where and how to use your new gear, check out our Fly Fishing Guide to Washington or browse our blog or YouTube channel for in-depth product tips and tutorials
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2% PLEDGE
2% of all Spawn profits are donated to conservation groups. This has been true since our 1st day of business