£4.66 – £4.95Price range: £4.66 through £4.95
You are just £80.00 away from Free Mainland UK Delivery!
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
When you are compressing a high-performance beachcaster during a powerful pendulum or off-the-ground cast, the stress placed on your line is immense. The Drennan Greased Weasel is an absolute legend in the sea angling world, widely regarded as one of the best-selling shock leaders ever formulated. It has earned its formidable reputation on unforgiving coastal beaches, rugged rock marks, and fast-flowing tidal channels by delivering an unparalleled blend of brute knot strength and slick, high-velocity casting performance.
The mechanical brilliance of Greased Weasel lies in its ultra-smooth surface finish and high-density polymer structure. It is engineered to glide through rod rings with minimal friction, maximizing your casting distance while absorbing the extreme, explosive G-forces generated by heavy 5oz to 7oz leads. Beyond its casting credentials, its extreme abrasion resistance makes it a firm favorite for navigating the rough, snag-ridden terrain of the seabed. It shrugs off contact with sharp flint, crushing shingle, barnacle-encrusted rocks, and tearing kelp stalks, ensuring your terminal rig remains securely anchored to your mainline until the fish is safely on the beach.
Product Type: High-performance heavy-duty saltwater shock leader and rig body monofilament.
Surface Finish: Ultra-slick, low-friction external coating for maximum guide speed.
Primary Application: Power casting shock leaders, heavy-duty trace extensions, and robust rig bodies.
Color Choices: Available in three highly strategic color options to match changing water clarity and light conditions.
Material Attribute: High-tensile polymer with excellent shock absorption and zero memory retention.
| Breaking Strain (LB) | Diameter (mm) | Primary Target Application |
| 40 LB | $0.58\text{mm}$ | Light-distance shore casting, clean sand beach scratching, and heavy float tactics. |
| 50 LB | $0.67\text{mm}$ | General beachcasting, medium surf work, and building standard flapper or pulley rigs. |
| 60 LB | $0.70\text{mm}$ | Power pendulum casting, heavy 6oz–7oz leads, big winter surf, and rough-ground cod/ray stalking. |
Power Pendulum & Tournament Casting: The absolute premier choice for shore anglers using high-modulus beachcasters and multipliers. The slick surface ensures your leader knot flies through the guides cleanly without catching, preventing catastrophic crack-offs.
Rough-Ground Cod & Ray Campaigns: Perfect for fishing over mixed or rough ground where your leader is constantly dragged over jagged ledges, rocks, and thick kelp gullies. The $0.70\text{mm}$ variant provides the raw structural durability needed to drag heavy fish through snags.
Hand-Tying Custom Rig Bodies: An exceptional material for building the main spine of your shore traces (such as Pulley Rigs, standard Flappers, or Cascade Rigs). It offers a completely stiff, memory-free construction that resists twisting and tangling in heavy tides.
Pro Tip: When tying a heavy monofilament leader like Greased Weasel onto a thin, low-diameter main casting line, your knot choice is everything! To create a perfectly streamlined, microscopic profile that exits your spool like silk, always use a Spider Hitch or Bimini Twist to create a double loop in your mainline, and join it to the Greased Weasel using a classic Albright Knot or an improved Uni-to-Uni Knot. Trim the tag ends incredibly close. This creates a neat, conical-shaped knot that sits beautifully at the back of your spool, completely eliminating the annoying “click” against the rod guides during a powerhouse cast!
Q: Why is this line called “Greased Weasel”?
A: The name highlights the line’s incredibly slick, low-friction external coating. It behaves as if it has been pre-lubricated, allowing it to slip effortlessly off fixed spool lips or multiplier cages, while sliding cleanly through modern micro-diameter rod guides to milk every single yard of distance out of your cast.
Q: Can I use the 60lb version for casting heavy 6oz grip leads?
A: Yes, absolutely. The golden rule of sea fishing safety is to use 10lb of shock leader strength for every 1oz of lead weight being cast. Therefore, a 5oz lead requires a minimum 50lb leader, and a heavy 6oz or 7oz lead safely requires the robust structural security of the 60lb ($0.70\text{mm}$) Greased Weasel to absorb the absolute peak load of an aggressive cast.
Q: Does this line absorb water and become weak over time?
A: No. Drennan utilizes an advanced, non-porous polymer compound that entirely resists water absorption and salt crystallization. Unlike cheap monofilaments that grow soft and lose up to 20% of their knot strength when soaked in brine, Greased Weasel retains its exact rated breaking strain and structural stiffness from the first cast of the day to the last.
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″