Choose by stay diameter, chainplate pin and available stay length. Boat-length ranges are guidance. Seldén selects individual models by rig loads; its published length range covers the whole family.
Harken MKIV Furling System
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| Unit 0 | 22–30 ft | 4mm, 5mm, 6mm, 5/32", 3/16", 7/32" | 5/16–7/16" | 11.77 m standard / 13.90 m max |
| Unit 1 | 28–36 ft | 6mm, 7mm, 8mm, 1/4", 9/32", 5/16" | 1/2 or 5/8" | 13.99 m standard / 16.12 m max |
| Unit 2 | 35–46 ft | 8mm, 10mm, 5/16", 3/8" | 5/8 or 3/4" | 18.38 m standard / 20.51 m max |
| Unit 3 | 45–60 ft | 11mm, 12mm, 7/16", 1/2" | 3/4 or 7/8" | 22.76 m standard / 24.89 m max |
| Unit 4 | 65–80 ft | 12mm, 14mm, 16mm, 1/2", 9/16", 5/8" | 7/8, 1 or 1-1/8" | 22.88 m standard / 27.15 m max |
Boat length is guidance. Select by stay diameter, terminal and chainplate pin. Stays longer than standard need the correct foil extension and connector.
View required parts, kit contents and recommended accessoriesHOOD YACHT SYSTEMS – HOOD 325 SEAFURL 5 SSYSTEM W/10 DD
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| H325 Seafurl 5 | 34–53 ft | 8mm, 10mm, 11mm, 5/16", 3/8", 7/16" | 1/2, 5/8 or 3/4" | 67 ft maximum system |
Harken MKIV Ocean Furler System
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| Unit 0 | 22–30 ft | 4mm, 5mm, 6mm, 5/32", 3/16", 7/32" | 5/16–7/16" | 11.77 m standard / 13.90 m max |
| Unit 1 | 28–36 ft | 6mm, 7mm, 8mm, 1/4", 9/32", 5/16" | 1/2 or 5/8" | 13.99 m standard / 16.12 m max |
| Unit 2 | 35–46 ft | 8mm, 10mm, 5/16", 3/8", 11mm, 7/16" | 5/8 or 3/4" | 18.38 m standard / 20.51 m max |
| Ocean Unit 3 | 45–80 ft | 11mm, 12mm, 14mm, 16mm, 7/16", 1/2", 9/16", 5/8" | 3/4, 7/8, 1 or 1-1/8" | Confirm ordered unit/foil length |
Boat length is guidance. Select by stay diameter, terminal and chainplate pin. Standard and maximum stay lengths require the correct foil extension. Ocean Unit 3 has a larger capacity than racing MKIV Unit 3.
View required parts, kit contents and recommended accessoriesHood SL Furler System
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 707 SL | 25–33 ft | 3/16", 7/32", 1/4", 9/32" | 5/16, 3/8, 7/16 or 1/2" | 53 ft 3 in maximum system |
| 808 SL | 34–46 ft | 5/16", 3/8" | 1/2 or 5/8" | 60 ft 6 in maximum system |
Hood catalog pages 4–5. Its imperial stay dimensions are retained because some metric equivalents printed in the catalog conflict. The store’s 808 SL 10-section / 67-ft option exceeds this catalog’s 60-ft-6-in maximum; confirm that configuration with Hood before ordering.
View required parts, kit contents and recommended accessoriesSchaefer Headsail Furler System 1100
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 1100 | 27–31 ft | 5mm, 5.5mm, 6mm, 7mm, 3/16", 7/32", 1/4", 9/32" | 3/8–1/2" | 43 ft |
Schaefer System SnapFurl CF 500 and 700
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| CF-500 | 16–24 ft | 3mm, 4mm, 5mm, 1/8", 5/32", 3/16" | Up to 3/8" | 31 ft 1 in |
| CF-700 | 24–28 ft | 4mm, 5mm, 5.5mm, 5/32", 3/16", 7/32" | Up to 7/16" | 38 ft |
Selden Furlex 104 Foresail Furler For Boats 20′ to 27′
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 104S | 25–65 ft · entire series | 4mm, 5mm, 6mm | Match ordered wire/terminal | Use selected stay length |
Seldén selects individual models by forestay diameter, rig type and righting moment. Its 25–65 ft guidance covers the whole 104S–404S family, not each model individually.
View required parts, kit contents and recommended accessoriesSelden Furlex 204 Foresail Furler For Boats 28′ to 35′
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 204S | 25–65 ft · entire series | 6mm, 7mm, 8mm | Match ordered wire/terminal | Use selected stay length |
Seldén selects individual models by forestay diameter, rig type and righting moment. Its 25–65 ft guidance covers the whole 104S–404S family, not each model individually.
View required parts, kit contents and recommended accessoriesSelden Furlex 304 Foresail Furler For Boats 38′ to 45′
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 304S | 25–65 ft · entire series | 8mm, 10mm | Match ordered wire/terminal | Use selected stay length |
Seldén selects individual models by forestay diameter, rig type and righting moment. Its 25–65 ft guidance covers the whole 104S–404S family, not each model individually.
View required parts, kit contents and recommended accessoriesSelden Furlex 404 Foresail Furler For Boats 47′ to 55′
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 404S | 25–65 ft · entire series | 12mm, 14mm | Match ordered wire/terminal | Use selected stay length |
Seldén selects individual models by forestay diameter, rig type and righting moment. Its 25–65 ft guidance covers the whole 104S–404S family, not each model individually.
View required parts, kit contents and recommended accessoriesSchaefer Headsail Furler System 2100
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 2100 | 30–42 ft | 6mm, 7mm, 8mm, 10mm, 1/4", 9/32", 5/16", 3/8" | 1/2 or 5/8" | 49 ft 3 in |
Schaefer Headsail Furler System 3100
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 3100 | 41–55 ft | 8mm, 10mm, 11mm, 12.7mm, 5/16", 3/8", 7/16", 1/2" | 5/8, 3/4 or 7/8" | 64 ft 7½ in |
Schaefer Headsail Furler System 4100
| Model | Suggested boat length | Stay diameter | Chainplate pin | Stay / system length |
|---|---|---|---|---|
| 4100 | 54–65 ft | 11mm, 12.7mm, 14.2mm, 7/16", 1/2", 9/16" | 3/4 or 7/8" | 78 ft 9¼ in |
