37 spirals for tilt-in double hung windows (per pair)

Quality spiral to keep your double hung window open. Technical specifications: 419 in. tube length allows identification of the correct model Important: Balances are always sold in pairs. To ensure proper function, always replace both balances simultaneously. Professional service available: Vosthermos offers on-site installation service within a 100km radius around Montreal. Call us at 514-825-8411 for a free quote. Dimensions: tube length allows identification of the correct model.