21 spirals for tilt double hung windows (sold in pairs)

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