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The removable front panel allows dam entry and exit without climbing, and the entire unit disassembles to flat panels for storage between litters. Meets AKC breeder facility standards.\u003c\/p\u003e","brand":"DuraWhelp","offers":[{"title":"L","offer_id":50362155335873,"sku":"NHC-PUP-001-L","price":449.0,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":50362155368641,"sku":"NHC-PUP-001-XL","price":484.92,"currency_code":"USD","in_stock":true},{"title":"XXL","offer_id":50362155401409,"sku":"NHC-PUP-001-XXL","price":529.82,"currency_code":"USD","in_stock":true},{"title":"XXXL","offer_id":50362155434177,"sku":"NHC-PUP-001-XXXL","price":583.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/9113\/8241\/files\/product-image_5ac47b36-cc49-498e-a921-6bb1e59cdbc8.png?v=1782585933"},{"product_id":"k-h-pet-products-whelping-heating-pad-24-36-inch","title":"K\u0026H Pet Products Whelping Heating Pad — 24×36 Inch — for Large Breed Dogs — Great Dane, Mastiff, Rottweiler","description":"\u003cp\u003eK\u0026amp;H's Whelping Heating Pad maintains a thermostatically controlled surface temperature of 102°F — matching the dam's natural body temperature — across a 24×36 inch surface that covers half a standard large breed whelping box, ensuring that newborn German Shepherd, Golden Retriever, and Bernese Mountain Dog puppies unable to thermoregulate in their first 2 weeks have a consistent warm zone without overheating risk. The medical-grade steel-wrapped heating cord resists chewing from the dam and early-mobile puppies, meeting UL safety standards for whelping environments. The waterproof cover wipes clean with a disinfectant solution and the dial thermostat allows adjustment from 95–105°F to accommodate different litter needs. Used by professional breeders and canine reproductive veterinarians across the United States.\u003c\/p\u003e","brand":"K\u0026H Pet Products","offers":[{"title":"L","offer_id":50362155466945,"sku":"NHC-PUP-002-L","price":89.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":50362155499713,"sku":"NHC-PUP-002-XL","price":97.19,"currency_code":"USD","in_stock":true},{"title":"XXL","offer_id":50362155532481,"sku":"NHC-PUP-002-XXL","price":106.19,"currency_code":"USD","in_stock":true},{"title":"XXXL","offer_id":50362155565249,"sku":"NHC-PUP-002-XXXL","price":116.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/9113\/8241\/files\/product-image_984a70da-c509-4ed3-818e-4e01b6e41446.png?v=1782588771"},{"product_id":"guardian-gear-xl-quilted-whelping-pads-50-pack","title":"Guardian Gear XL Quilted Whelping Pads — 50-Pack — for Large Breed Dogs — Great Dane, Mastiff, Rottweiler","description":"\u003cp\u003eGuardian Gear's XL whelping pads measure 30×32 inches — significantly larger than standard puppy pads — to cover the floor of large breed whelping boxes and puppy pens used with Saint Bernards, Great Danes, and Newfoundland litters that generate the substantial fluid volume of large breed births. A 5-layer construction includes a super-absorbent polymer core rated to 35 oz per pad, a leak-proof bottom film, and a soft quilted top surface that does not bunch or pill even after hours of puppy traffic and nesting by the dam. The quick-dry top surface keeps puppies dry in the critical first 72 hours when hypothermia risk is highest. Available in 25-count and 50-count bulk packs for active breeding programs.\u003c\/p\u003e","brand":"Guardian Gear","offers":[{"title":"L","offer_id":50362155598017,"sku":"NHC-PUP-003-L","price":49.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":50362155630785,"sku":"NHC-PUP-003-XL","price":53.99,"currency_code":"USD","in_stock":true},{"title":"XXL","offer_id":50362155663553,"sku":"NHC-PUP-003-XXL","price":58.99,"currency_code":"USD","in_stock":true},{"title":"XXXL","offer_id":50362155696321,"sku":"NHC-PUP-003-XXXL","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/9113\/8241\/files\/product-image_3d253034-ef4d-425e-b8c7-10b6c5982f23.png?v=1782586944"},{"product_id":"midwest-puppy-playpen-extra-tall-36-inch-for-large-breeds","title":"MidWest Puppy Playpen — Extra Tall 36-Inch for Large Breeds — for Large Breed Dogs — Great Dane, Mastiff, Rottweiler","description":"\u003cp\u003eMidWest's 36-inch-tall puppy playpen addresses the core failure mode of standard 24-inch pens for large breed puppies — a 10-week German Shepherd, Labrador Retriever, or Rottweiler puppy can clear a 24-inch panel within weeks of coordinating their rear-end, making extra height the most important feature for buyers of large breed pen systems. Eight 24-inch-wide galvanized wire panels create a spacious 16 sq ft interior that accommodates litter play and socialization activities, and additional panels are available to expand the area as the litter grows. A hinged walk-through door with a magnetic closure allows adult entry and exit without climbing, and all panels fold flat for storage. 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Four adjustment points allow the harness to grow with the puppy through a range of 16–28 inch chest girth, typically covering the full critical socialization period for large breeds. All hardware is rated to 200 lbs — appropriate for the leash pressure a confident 40 lb puppy can generate. 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The breakaway safety buckle releases under sustained pressure of 14 lbs, preventing strangulation if a puppy's collar catches on crate wire or kennel fencing during unsupervised play — the leading cause of collar-related puppy injury. A quick-release tab allows handlers to remove the collar with one hand during training sessions. Machine washable nylon webbing; available in 12 colors.\u003c\/p\u003e","brand":"Coastal Pet","offers":[{"title":"L","offer_id":50362156024001,"sku":"NHC-PUP-006-L","price":14.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":50362156056769,"sku":"NHC-PUP-006-XL","price":16.19,"currency_code":"USD","in_stock":true},{"title":"XXL","offer_id":50362156089537,"sku":"NHC-PUP-006-XXL","price":17.69,"currency_code":"USD","in_stock":true},{"title":"XXXL","offer_id":50362156122305,"sku":"NHC-PUP-006-XXXL","price":19.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/9113\/8241\/files\/product-image_bc8f2120-c620-421b-a7dc-42ca330c7344.png?v=1782584975"},{"product_id":"guardian-gear-engraved-aluminum-puppy-id-tag-set","title":"Guardian Gear Engraved Aluminum Puppy ID Tag Set — for Large Breed Dogs — Great Dane, Mastiff, Rottweiler","description":"\u003cp\u003eGuardian Gear's XL aluminum ID tag set includes 10 tags with 4 engraving lines per tag — sufficient to include the puppy's name, owner phone, breeder contact, and microchip number — in large font sizes visible to anyone attempting to read the tag on an active large breed puppy. Anodized aluminum is significantly more scratch-resistant than the stainless steel used in standard pet tags and will remain legible through years of active use by German Shepherds, Labrador Retrievers, and Rottweilers who spend time outdoors in abrasive environments. The swivel split-ring attachment fits collar D-rings from 3\/4 inch to 1.5 inch width without a separate connector. 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At 48 inches tall, the gate contains large breed puppies — German Shepherds, Rottweilers, and Labrador Retrievers — through the jumping phase that typically begins at 12–16 weeks, when standard 30-inch gates become obstacles rather than barriers. The one-touch release door opens with a single hand for adults carrying items, and the auto-close function ensures the gate is never accidentally left open. Steel frame with powder-coat finish rated to 250 lbs pushing force.\u003c\/p\u003e","brand":"Carlson Pet Products","offers":[{"title":"L","offer_id":50362156286145,"sku":"NHC-PUP-008-L","price":99.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":50362156318913,"sku":"NHC-PUP-008-XL","price":107.99,"currency_code":"USD","in_stock":true},{"title":"XXL","offer_id":50362156351681,"sku":"NHC-PUP-008-XXL","price":117.99,"currency_code":"USD","in_stock":true},{"title":"XXXL","offer_id":50362156384449,"sku":"NHC-PUP-008-XXXL","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/9113\/8241\/files\/product-image_80024c60-6c6b-4e55-af72-40a7a53e7c93.png?v=1782584863"},{"product_id":"k-h-pet-products-whelping-rail-safety-kit","title":"K\u0026H Pet Products Whelping Rail Safety Kit — for Large Breed Dogs — Great Dane, Mastiff, Rottweiler","description":"\u003cp\u003eK\u0026amp;H's whelping rail kit provides pre-cut, pre-drilled HDPE rails that install along the bottom 4 inches of any whelping box interior, creating the critical 4-inch standoff gap that prevents the dam from accidentally crushing newborn puppies against the wall — a leading cause of early neonatal loss in large breed litters including German Shepherds, Golden Retrievers, and Labrador Retrievers where dam weight can exceed 80 lbs. The rail material matches DuraWhelp and other HDPE whelping boxes for seamless retrofit and is dishwasher-safe at 130°F for post-litter disinfection. The kit includes rails, mounting hardware, and a 6-inch corner connector for four-wall installation in standard 48×36 and 60×48 inch large breed whelping box dimensions. 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The formula replicates the protein-to-fat ratio and immunoglobulin content of large breed dam's milk at the 1:1 powder-to-water mixing ratio, and mixes instantly without clumping using the included mixing shaker. Available in 1 lb, 2.5 lb, and 5 lb canister sizes; shelf stable for 24 months unopened. 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All components are medical-grade silicone and borosilicate glass rated for autoclave sterilization at 250°F, ensuring the microbiological standards required for immunocompromised neonatal feeding. The graduated markings allow accurate recording of per-feeding volumes for the weight-tracking protocols used by professional breeders and reproductive veterinarians. 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Data logging via the included memory function allows trend tracking of each puppy's daily weight gain against AKC growth curves without transferring readings to a separate record manually. The stainless steel weighing platform wipes clean with disinfectant and the removable whelping bowl accessory contains newborns safely during weighing. 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The divider system is the most critical tool in crate-training large breeds because it prevents the puppy from using one end of an oversize crate as a bathroom — the behavior that derails crate training in large breed puppies faster than any other factor. Standard 9-gauge wire construction with a leak-proof tray; folds flat for storage between breeding cycles. 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