Tier 4 · UpgradesA one-time buy that outlasts the hivePremium corrosion-proof stainless steel entrance discs — 125mm diameter, purpose-sized for the OCFH poly nuc entrance housing. Upgrade from the standard plastic discs to a lifetime solution that never rusts, never degrades, and never needs replacing. Premium Component UpgradeCorrosion-proof, built for decadesThe standard plastic entrance discs included with every poly nuc work perfectly. But if you want entrance discs that will outlast everything else in your apiary — including the boxes themselves — stainless steel is the upgrade to make.Never Rust, Never CorrodeStainless steel is impervious to moisture, propolis, and the elements. No matter how wet, humid, or harsh your climate — these discs stay pristine year after year.Perfect Fit — 125mm DiameterPurpose-sized for the Old Castle Farm Hives poly nuc entrance housing. Fits precisely with no gaps, no wobble, no adjustment needed.One-Time InvestmentBuy them once, use them forever. Unlike plastic discs that can crack, warp, or degrade over time, stainless steel entrance discs are a true lifetime purchase.Easy to CleanSmooth stainless steel surface wipes clean in seconds. Propolis scrapes off with no effort. No staining, no deterioration, no maintenance beyond a quick wipe. Stainless Steel Entrance Discs Perfect Fit Plastic vs Stainless SteelWhen to upgrade to stainlessThe plastic entrance discs included with every poly nuc work well for most beekeepers. But if you want components that will literally last a lifetime — or if you’re building a premium setup — stainless steel is the smart upgrade.Build Once, Never ReplaceSome beekeepers just prefer components that never need upgrading, replacing, or maintaining. Stainless steel entrance discs are that component — buy once, done.Premium Build QualityIf you’re investing in the best poly nuc on the market, why not complete the setup with premium entrance discs? Stainless steel is the finishing touch for a professional apiary.Harsh Climate & Coastal AreasIf you’re in a wet, humid, or coastal environment where corrosion is a concern, stainless steel entrance discs eliminate any risk of degradation over time. Top Tip — 125mm Diameter for OCF Poly NucsThese stainless steel entrance discs are 125mm diameter — specifically sized for the Old Castle Farm Hives poly nuc entrance housing. They fit perfectly without modification. Check your nuc’s entrance size if you’re using entrance discs from other suppliers. Technical SpecificationsFull product specificationsProduct TypeStainless Steel Entrance Discs (premium upgrade)Compatibility6 Frame Dual Poly Nuc (all configurations)MaterialStainless steel — corrosion-proofDiameter125mm — purpose-sized for OCF entrance housingQuantity Required2 discs per nuc (one for each split section when using the dual divider)InstallationDirect replacement for plastic entrance discs — uses same fixing screwsDurabilityLifetime — never rusts, never degradesMaintenanceWipe clean — propolis removes easily, no stainingUse CasePremium upgrade, harsh climates, coastal areas, lifetime investmentReplacesStandard plastic entrance discs (included with poly nuc)AvailabilityExclusively from Old Castle Farm Hives Expand Your SetupThe complete Poly Nuc rangeEvery product in the range is designed to work seamlessly with your 6 Frame Dual Poly Nuc. Build the exact setup your apiary needs — from a second complete box to individual replacement parts. Tier 1Core Products — Complete, Ready-to-Use Standard · £54.996 Frame Dual Poly Nuc — StandardThe hero product. Full 6-frame British National nuc with 3.5L feeder, Correx divider, mesh floor, lid, and 2× entrance discs. Complete kit — nothing extra to buy. View product → 14×12 Version6 Frame Dual Poly Nuc — 14×12The standard nuc with the 14×12 eke extension pre-installed — full 14×12 brood depth straight out of the box. Ideal for beekeepers who run exclusively 14×12. View product → Tier 2Expansion — Scale Up the Colony Expansion14×12 Eke ExtensionConverts your standard poly nuc to full 14×12 brood depth — giving a growing colony more space without buying a new box. Fits between brood box and feeder. View product → ExpansionBrood Box ExtensionAdditional brood space for thriving, established colonies. The modular way to scale up with your bees as the season progresses — expand, don’t replace. View product → Tier 3Transport & Management TransportVented Transport LidPurpose-designed ventilated lid that fits the 6 Frame Dual Poly Nuc precisely. Keeps bees safe, calm, and ventilated during transport. View product → TransportMesh Transport BagCordstring mesh bag for safe transport of the poly nuc. Additional security and ventilation when moving colonies — particularly useful at shows and collection points. View product → Tier 4Upgrades — Premium Component Alternatives UpgradeAluminium Composite DividerUpgrade from the standard Correx divider to a precision-cut aluminium composite version — maximum durability and years of repeated use. Fits without modification. View product → UpgradeStainless Steel Entrance Discs (125mm)Premium corrosion-proof stainless steel alternative to the standard plastic entrance discs. 125mm — purpose-sized for the OCF entrance housing. A one-time buy that outlasts the hive. View product → Tier 5 — Spare PartsKeep every nuc in serviceNothing ever needs replacing wholesale. Individual spare parts mean a single worn or damaged component is a quick, cheap fix — not an excuse to buy a whole new box.PartDescriptionLinkReplacement Feeder (3.5L)Top feeder — liquid syrup or fondant/pattie.View →Replacement LidStandard lid with hive strap recess.View →Replacement Correx Divider (Standard)Standard-depth Correx dividing board. Colour may vary.View →Replacement Correx Divider (14×12)14×12 depth Correx divider for use with the eke extension.View →Spare Perspex Feeder Panels (×2)Replacement Perspex panels for the 3.5L top feeder.View →Spare Silicone Bung (Feeder)Replacement silicone bung for the feeder hole. Apply petroleum jelly and twist firmly for a leak-free seal.View →Plastic Entrance Discs (125mm)Standard plastic hive entrance discs — 125mm.View →Stainless Steel Entrance Discs (125mm)Premium corrosion-proof stainless alternative — 125mm.View → A one-time buy — outlasts the hiveCorrosion-proof stainless steel. 125mm diameter. Perfect fit. Lifetime durability. Exclusively designed and available only from Old Castle Farm Hives. Add to Basket
